|I am a De Nile! And I'm not going to let a teeny set-back keep me from my destiny!!|
|—Cleo de Nile to Twyla in "13 Wishes"|
Cleo de Nile is a 2010/2016-introduced and all-around character. She is a mummy and a student at Monster High. She's the Queen Bee at school, and the most popular girl, as her status as an undead Egyptian princess gives her relevancy over the others. Daughter of Ramses de Nile, she was second in heir to be a pharaoh, if it wasn't for the fact that she died and she has an older sister Nefera de Nile. She lives in a palace-like temple with hundreds of loyal servants in the middle of New Salem (Salem, Oregon in the books by Lisi Harrison). She can always rely on her BFF, Ghoulia, to have her back, and not just because Ghoulia is her personal assistant. She believes herself and Deuce Gorgon to be the "it" couple at Monster High, according to "Boo York, Boo York". She is also the daughter of Dedyet de Nile, her mother who she used to have a lot more in common with.
In the music video for the Monster High Fright Song, while Cleo de Nile herself does appear in animation, she is also cast with several other character analogues who received creative interpretation by the video crew. The mummy girl is played by Megan Mackenzie.
In the English version of the cartoon, Cleo's voice is provided by Salli Saffioti, who also happens to provide the voice for Clawdeen Wolf, in "Scaris: City of Frights" their voice was provided by Salli Saffioti under the alias Celeste Henderson. Her singing voice is Firoozeh Scoot.
She was portrayed by Megan Nicole in the YouTube video of the Monster High special song "Digital Monsters, We are Proud".
Cleo was a princess of Egypt over 5,800 years ago and raised to a wealthy royal household, young and happy. One day, a delegation from a far-off country arrived and gifted her sister, Nefera, a corpse flower that was claimed to be a rare treasure only fit for royalty. However, one day her uncle committed a coup d'état that had been perfectly planned, leading her family to be adviced to flee underground. Despite that the queen had yet to join them, Ramses de Nile already had the family wrapped with magic cloth that would keep them safe while their loyal followers would deal with the usurper. What they didn't know was that they had no loyal followers left and that the magic cloth was meant to keep them asleep forever. Nonetheless, they woke up after 1,300 years, only to find the queen still missing and themselves trapped within the hiding spot. As Ramses began to spend his days looking for an exit, Cleo pessimistically enjoyed the luxuries of their prison, but Nefera was hit badly by both the loss of her mother and her future and spent most of her time talking to her corpse flower, that she'd taken with her. An earthquake eventually damaged the prison enough to create a hole, allowing sunlight in. As the family rejoiced, the corpse flower awakened from her slumber and introduced herself as Amanita Nightshade. She explained what truly happened during the coup d'état, revealed that the family had been asleep for 1,300 years, and elaborated that they now no longer fit the human world but must find their place in monster society. When a caravan passed by, the De Niles' shouting was not enough to draw attention, but Amanita was thin enough to get through the gap and promised to return with help. She never did and the family eventually got out on their own.
About 4,500 years later, the family has relocated to New Salem, Boonighted States of Scaremerica. Though the throne of old is gone, the family has access to a large collection of magical artifacts that only works for them and over 10,000 servants, most of which apparently ushabti. Cleo has easily adapted to her monster life, enjoying the riches of her temple and enjoying the life of an high-schoolar at Monster High, the prestiged school of the Boo World, eventually finding interest Clawd Wolf, the co-captain of the basketball team, only to later dump him for his co-captain Deuce Gorgon, where she found love, that made her ascend in the social pyramid, making people realize that she was also a princess, making her incredibly popular, enough to join the fearleading squad led by her sister, that, because of this, elected her for captain when she graduated. Since then she's been either famous for her success and status or infamous for her less-than-kind personality.
Cleo is extremely royal, so she expects everyone to treat her like it. Usually, her attitude is selfish, spoiled, and arrogant; she can't be entirely blamed for her behavior, because it's shown that she was raised to be like this. She is extremely competitive with other ghouls, especially Toralei Stripe. But deep down, Cleo's a very caring, kind, and thoughtful ghoul who cares about her friends.
As royalty, Cleo is unsurprisingly the Queen of the student body, though few know her confidence is not as solid as she makes it seem to be: she is easy to be taken by the insecurity of not being fit for leadership, had it not been for the support of her friends from the Fear Squad, the loyalty of her BFF Ghoulia, and the comfort of her boyfriend Deuce's embrace, Cleo's crown would have been crushed a long time ago. Cleo is aware she is lucky to have found people around her that allow her to flourish and while not always the most tactful, she is very protective of her crew.
She can work well with the others if they share a common goal, in which case she becomes the de facto leader of the ghouls. She's a highly effective organizer and a leader who will deviate between acting selfishly and selflessly, depending on her mood, which is easy to alter, as she is a tad tempered, when fueled, and violent if upset. Additionally, she is stubborn and will only follow her rules if she feels like it, and she lacks when it comes to learning from her mistakes, making the same mistakes of dodging responsibility and attempting to control others. It doesn't help she has access to limited amounts of magic, through her magical amulets. In the webisode series of Monster High, Cleo is mainly known as the Queen Bee at school, having self-proclaimed popularity which is not untrue despite being self-proclaimed. Despite Cleo's personality overall, one of her true personality traits is that she is kindhearted deep down with a true heart of gold, which is much more than what can be said about her sister Nefera, who, when asked about best friends in her profile bio, only said she "rule[s] alone". Cleo also solely goes by the name Cleo in the Monster High without the adding of the family name "de Nile" to not raise suspicion to her name resembling the Egyptian name Cleopatra and having a name that has to do with the river, the Nile, which is what her surname is based on. Though her full name is never actually said, as in, "Cleo de Nile", it is hinted at, especially when Brett Redding, calls her "Queen of de-Nile" as a pun on the river Nile and the word "denial", and her father is referred to as "Ram de Nile" in the beginning of the second book.
Cleo de Nile is in the possession of dark brown hair, which is commonly enhanced with golden highlights, although she also picks blue, teal, and/or purple as additional colors, but she typically wears it with gold streaks made of real gold and not just golden, which also has some black streaks in it. She favors her hair to be long and hang loose, but she isn't hesitant to switch it up with a shoulder-length haircut. She has tan skin and blue eyes, always surrounded by thick black winged eyeliner, and wears a gem on her right cheek that is blue in most of her ensembles which may or may not be a birthmark. Though, in the original Monster High franchise and Generation 1 of Monster High by 'Basic' doll, and cartoon, it appears she has naturally black hair with natural medium-brown streaks and golden-colored streaks made of real gold.
While Cleo can get creative with her look, there is one fashion rule she can't break: she always has to have at least one piece of burial wrapping on her, lest she disappears into dust.Fortunately for her, she is allowed to apply the burial wrapping in whatever way suits her. This may or may not be exclusive to the Facebook content and doll lines. Sometimes, she wears an entire jumpsuit with limb warmers made of the material. At other times, the burial wrappings are worked into a simple waist wrap easily forgotten among the rest of the look. Cleo's standard colors of choice to dress in are shades of yellow, including gold, which is her favorite color, and anything in the range blue-to-teal. She has also experimented with purple and red, but those are limited to specific periods. While not dress-shy, Cleo prefers to step into a pair of pants, usually as part of the aforementioned jumpsuit. As part of an Ancient Egyptian Royal Family, Cleo commonly works large gems into her look, as well as scarabs, lotuses, snakes, and triangles (pyramids).
In the Monster High book series by Lisi Harrison entitled "Monster High", Cleo is portrayed as much as a diva as anywhere else in the franchise. She had a rough start with Frankie Stein since Frankie exposed the RADs and cost Cleo her friendships with the movie "The Ghoul Next Door" in the second book, The Ghoul Next Door, and with Melody Carver, since Melody spilled her red grapes all over the floor and refused to go and buy her new ones, and also for kissing her boyfriend Deuce, which was to get back for kissing Jackson, only used for payback for not buying her royal highness grapes in the first book. In the Lisi Harrison books, Cleo sees Jackson Jekyll as a geek, referencing to Deuce's Greek heritage, in her words: "Why have geek when you can have Greek?". She only kissed Jackson to get back at Melody, which Jackson Jekyll did not seem to mind the revenge kiss one bit (though it was actually D.J. Hyde, not Jackson Jekyll, who saw the payback kiss as a turn-on). In the books by Lisi Harrison, Cleo is friends with Clawdeen, Lala, Blue, and to some extent in the beginning when going for a spa, Frankie Stein. Frankie got kicked in the leg as a warning to say: "Watch it, new girl!" by Cleo. In the first book titled Monster High, Cleo saw Frankie nothing more than as a klutz, since she was clumsy enough to literally get her head knocked off from a kiss from Brett Redding. In The Ghoul Next Door the second book, Cleo gets dumped by Clawdeen, Lala and Blue, meaning they are no longer friends, though Julia is still Cleo's friend, as Julia Phelps will always be loyal to Cleo de Nile. Though Julia Phelps will always be loyal to Cleo, that still isn't enough for her. In The Ghoul Next Door, all Cleo wanted to do was be with her girls and drink champagne, aka "model water" and have their pictures taken as a photoshoot. But that turned out to be a total bust. In Monster High, when Melody and Jackson are in the woods having an argument, Cleo is heard with her boyfriend Deuce Gorgon, making fun of his need to hide his hair under a hat because his hair is snakes while hiking. In the second book, Cleo is busy trying to get the "Ghoul Next Door" or the "The Next Door" movie deleted from Brett's computer, which is why she has teamed up with Bekka Madden. (Though Bekka's intentions where to unblur the faces for the whole world to see and be scared of "monsters"). Cleo was furious at Bekka when she found out, for that was the reason that Cleo's friends stopped being friends with her, because they knew Cleo knew it would get them exposed and in trouble. Though she was furious when Cleo found out, Cleo still tried to make amends with her friends, or rather, "ex-friends". In The Ghoul Next Door, Cleo and Melody with Melody's sister Candace Carver get with Manu for a photoshoot with camels, to which Cleo, Melody and Candace discover that Glory Carver might not be Melody's real mother, as there is this, Marina, after Cleo discovers that camels come to Melody's voice as if she were a goddess. In the third book, Where There's a Wolf, There's a Way, Cleo is still trying to make amends with her ex-friends, to which Blue is the most angry at, most likely because of her aunt, Coral, who wants for herself and Blue to move back to the Great Barrier Reef, though the Great Barrier Reef might mean that Cleo could lose Blue as a friend for good. Cleo still wants to get her friends back so she slowly and carefully explains her intentions but she didn't know Bekka's. (Though Cleo doesn't know that Bekka's real intention was to expose the monsters, or the RADs for good). It also happened that Deuce was moving back to Greece. Cleo helped Melody find out the truth about her mother, Marina, who was in fact, a siren, which sirens are mermaid-like creatures, for being like mermaids for two reasons: being water RADs and luring males with their songs. Cleo was just as shocked as Melody herself about it. In the fourth book, entitled Back and Deader Than Ever, Deuce came back from Greece and reunited with Cleo, much to Cleo's glee and content. In Back and Deader Than Ever, Deuce just came back from a musical, which Cleo didn't know how to respond to. She was also upset by Melody asking Deuce to the Monster Mash in Monster High.
The book Cleo is back and in a whole new lighting! She is friends with Frankie Stein, Draculaura, Clawdeen Wolf, Lagoona Blue, and Ghoulia Yelps – and, to some extent, her boyfriend Deuce Gorgon! She is the queen bee at Monster High, though this Queen Bee gets easily hypnotized or brainwashed by Sylphia Flapper's mind control. Though she gets mesmerized by Sylphia Flapper, she comes back to her senses and forgets all about from the help of Rochelle Goyle, Venus McFlytrap, and Robecca Steam. But Rochelle, Venus and Robecca couldn't have done it without Cy Clops, the cyclops. In "Ghoulfriends Forever", she starts out as having gone shopping before Ghoulish Literature, bringing her purchases to class. This draws the attention of Venus, who does not approve of taking bags from the stores and unnecessarily burdening the planet. She tries to convince Cleo to take a reusable shopping bag with her from now, but only manages to irritate the mummy. The situation quickly escalates, both sides unwilling to budge, and Venus loses control. She hits Cleo with a pollen cloud, mind-controlling her into getting herself one solid shopping bag to use. Unable to resist, Cleo enthusiastically agrees, but her anger from before remains. A few days later, like almost everyone else at Monster High, Cleo has come under Sylphia Flapper's mind control and is not freed until a few days later by the efforts of Venus, Rochelle, Robecca, and Cy.
Hopes and Screams
Cleo wants to decline writing for the Gory Gazette, but she promises to throw a premiere party in honor of the issue. She informs Deuce they'll need to find matching ensembles, but she is cut short when his snakes start loudly hissing at her. Deuce and Cleo are send to Bloodgood's office for disrupting Mad Science, but Deuce remains unable to calm his snakes or explain their behavior. He quickly runs off and Cleo, worried she might have to compete with his hair over his affections, follows him. Cleo spots him talking with Frankie in the Creepateria and assumes he is following his hair's wishes and replacing her with Frankie. Broken, she returns home and lets Ghoulia comfort her. Going through a book on snakes, Ghoulia finds a possible solution: Cleo has to learn to play the flute in order to charm the snakes. Cleo doesn't hesitate for a moment and signs up for a rush lesson. Once she's ready, she invites Deuce to the clawditorium, where he stumbles over himself to explain that he never would break up with her. The reason his snakes got hostile was because he was preparing an anniversary gift for her and they didn't want him near her for fear he'd spoil the surprise. He gives her the earrings he bought and, flustered, Cleo tells him about her flute lessons. Deuce tells her to play it for him anyway as her own gift, which she gladly does. Cleo and Deuce are awarded a Scream in the latest entry of Clawdeen's Gory Gazette vlog Fashion Screams and Yawns and later shares a tough practice ferleading practice session before the casketball game with her.
I Only Have Eye for You
In "I Only Have Eye for You", Headmistress Bloodgood announces to the students that the Fraidy Hawkins dance, a dance where the girls ask the boys for a date, is coming up at the end of the week in "Bull's Eye". But Cleo doesn't appear in that one. In "Table for None", Cleo wants to ask her boyfriend Deuce to the dance while she, Ghoulia and Frankie are visiting the Maul for some dresses to buy for the dance. She spies a particularly fancy dress and goes to buy it, but discovers she has no money in her wallet. Cleo decides to talk to her father and rectify this. Her father is talking to the shadowy figure on the phone when she arrives. He tells Cleo that he still doesn't approve of Deuce dating her, and refuses to give her any money to spend on a date with him. Cleo shrugs it off, believing Deuce will be able to pay for the date.
The next day, Deuce gives Cleo a huge number of Furry Fiend toys, but because he spent all his money on them, he has nothing left for the dance. Dismayed, Cleo decides there's no way they can go looking less than spectacular, and they'll have to skip the dance. So that no one suspects what's happened to them, she asks to stay at Deuce's house to keep a low profile.
At Deuce's house, Deuce plays Grand Death Zombo on a game console, and asks if Cleo would like to play. Cleo refuses at first, but Deuce jokes that maybe the game is the one thing she's not the best at, and she starts playing to prove him wrong. She actually starts enjoying the game. When they run out of snacks, Deuce suggests that he cook dinner for them, and Cleo helps him in the kitchen as he prepares a delicious meal.
After dinner, Cleo tells Deuce she wants to go to the dance after all, realizing that they don't need money to have a good time, as long as they've got each other.
Monster High Diaries
In "Cleo de Nile and the Creeperific Mummy Makeover", Cleo and her family are dining together, and Ramses gets some starling news – Dedyet, his wife and Cleo's and Nefera's mother, has suddenly appeared. Cleo is delighted by the news of Dedyet de Nile, since she has fond memories of how glamorous and elegant her mother used to be before they were separated. The next day, she tells the news to Frankie, Draculaura and Deuce, regaling them with tales of how fantastic she was, and announces that her family will be throwing a huge party in a few days to welcome her mother. Draculaura wonders if Cleo's mother might be different from how she remembers her, but Cleo is certain she'll be just as she last saw her. During the conversation, Frankie accidentally rips her skirt, and Cleo offers to help her repair it. The next day, Dedyet de Nile meets the family at long last, but everyone, Cleo especially, is surprised to see her wearing a worn shirt and jeans, and no make-up. Even more surprising, she makes a snack for herself in the kitchen without waiting for a servant.
Dedyet explains that after the family escaped from their home in Egypt, she found herself in a hideout, waiting for word from her family. With nothing to do, she took to reading from a massive library, and developed an interest in archaeology, as well as becoming less accustomed to the lush lifestyle she had once lived. When she eventually made her way to the Boo World to find her family, she decided to spend some time assisting at an archaeological dig. Before they could finish though, they were trapped inside a tomb, and were only released recently.
Although impressed by her mother's tales, Cleo is worried that she and her mother no longer seem to have anything in common, as well as what her friends will think when they realize Dedyet is nothing like she had described. When her friends ask about her the next day, Cleo doesn't give out the full details of her mother's new look. After helping Draculaura with a new fearleading routine, Cleo hits on the idea of giving her mother a complete makeover at a spa, reminding her of how she used to be.
After school she meets Clawdeen, and asks if she could make a dress for her mother to wear for the party. Clawdeen explains she'd love to, but she's currently busy trying to design a dress for Clawdia, and can't find the fabric she needs. Upon seeing the design for the dress, Cleo remembers that she has a similar dress in her closet, and offers to give it to Clawdeen to modify into her design. The two head to Cleo's place, where Dedyet asks if she can meet Clawdeen. Cleo suggests that it would be a good idea to have a makeover so she can look her best before she meets her friends. Dedyet states that she truly is happy with the way she is now, and is disappointed that Cleo doesn't seem to understand. Cleo realizes that she genuinely is happy that her mother is happy, and apologizes for suggesting the makeover. The two spend the night watching movies together, and reminiscing over Dedyet's stories of her time as archaeologist.
Realising that her mother probably wouldn't like the extravagant party she had planned, Cleo decides she needs to tone it down, despite Nefera's protests. She asks her friends for some help arranging the new party, telling them the truth about her mother's current look. Every one agrees they're sure to like her when they meet her, and Deuce is happy that he'll finally meet a member of Cleo's family that will actually like him.
Some time later, and with some reluctant help from Nefera, the party is redesigned as a 'come as you are' party. Dedyet meet's Cleo's friends, and Cleo asks if they're amazed by how different she and Dedyet are now. Her friends state that Cleo and Dedyet do have one thing in common – both of them are incredibly caring and willing to help others.
- Banshee Scream: Cleo can scream very loudly like Operetta can because it is the ability acquired by the race mummy.
- Serpent Charming: Like her sister Nefera, she can charm snakes.
- Scarab Charming: Like Nefera, Cleo can also charm scarab beetles.
- Mummy Wrap Power: Through her mummy heritage powers, she has the ability to wrap others in bandages and spread out bandages, such as seen in "Welcome to Monster High", she was seen spreading out her wrappings onto a gravestone to trip the Zomboyz. This is an ability only acquired in the 2016 reboot. It is certainly unknown if it will ever be brought up again in 2017 of the reboot.
- Amulets: Although it is not her innate ability, Cleo can use their rodzinych idols and amulets. Though not dokońca reigns over them, it often happens that accidentally releases the various plagues that rotate against her. For instance, when hairs lost by excessive use one of them.
Cleo lives with her father, and older sister, Nefera de Nile. Her dad's name is Ramses de Nile, and he's an antiques dealer. Cleo and Nefera's mother is mentioned in her Gloom and Bloom diary. She was left behind when the De Nile family went under the conspiracy. She is confirmed to be alive at the end of Hexiciah Steam's and Robecca Steam's diary, though it is unknown what happens to her after. In The Ghoul Next Door, Nefertiti is said to be the girls' aunt. She has a tough relationship with her father and sister, though the case is more serious with the latter. Nefertiti in Monster High is most likely a book-only character to the Lisi Harrison series. The aunt most likely exists in the monster world version of the real-life world in Monster High, since Ramses de Nile is a clear reference to the mummy Ramses or Ramesses as an alternative spelling in Egyptian mummy mythology history possibly Ramesses II, and Cleo's name is clearly based on the mummy Cleopatra, but the mummy Nefertiti who might be the actual Nefertiti in Egyptian history is probably not related to Cleo nor her elder sister.
Cleo's within the most popular students at Monster High, a status that has adquired her a vast list of followers, but her list of close friends isn't too big, as she initially faced friendships has despensible, as long as she's treated like she best pleases. She's sometimes bossy and demanding to the other ghouls, but she's also shown to be afraid of opening herself up to deeper friendships and making herself seem vulnerable. As the series has progressed, she has mellowed out and become much nicer and GFFs with the other ghouls.
So, she finds a best friend in Ghoulia Yelps, and they even plan their school schedules together. Ghoulia often serves as Cleo's personal assistant ("Copy Canine", "Mad Science Fair"), and Cleo forgets at times to give Ghoulia respect, usually taking advantage of her submisive nature and her smarts. Despite this, she has learned how to treat Ghoulia like a friend rather than a servant, specifically after "Fright On!". The two trust each other and do almost everything together, Ghoulia helps Cleo with academic achievings while Cleo protects Ghoulia from any harm and makes sure she's "someone", though Ghoulia really couldn't care less about her popularity.
Out of the three permanent members, Cleo seems to be closer to Clawdeen, the most mature of the three, something she respects. However the two didn't start all that good. Cleo used to date Clawdeen's brother, Clawd Wolf, who she dumped, leaving a grudge between the two divas. Clawdeen didn't trust Cleo and Cleo looked down on lowly Clawdeen in their begginings, however when the two grew closer they discovered they have more in common then they previously thought. Despite Clawdeen not standing Cleo's bossy nature and her dramatic reactions, the two are popular and fans of high fashion, fierce and confident, and work very well together. So much that Clawdeen has become sorts of an inspiration to Cleo, with her hard work and free creativity.
Cleo can get easily furstrated with both Frankie's and Draculaura's antics, both being the most immature of the crew, with overly excitement and positivity in them, which Cleo appreciates but also gets slightly annoyed with. She also had a hard time to adapt the clumsiness of the two, who to top it off weren't the most skilled cheerleaders to begin with. However, she will do anything to protect them and loves them with all her heart. Like with Clawdeen, Frankie's and Cleo's mutual relationship didn't have smooth begginings, with Frankie, accidently, embarrasing her twice, once by insinuating her boyfriend was actually Deuce.
Lagoona is the other member of their clique that is close to Cleo. Though interactions between the two are rare, Lagoona is just as sympathetic and friendly towards her as she is to the next one, though Cleo is probably the one out of the main six she is the most hostile towards, though not in big amounts, sometimes being sassy and lecturing her, though only when Cleo is inconsiderate. As the voice of reason and the most down to earth of the gang, Cleo definitely trusts her and enjoys her company too.
Among Cleo's less close friendships lie Jinafire Long, her wise, advice-giving roommate, that is living in her palace while the exchange program carries on; Abbey Bominable, her foreign friend who she kind of thinks lowly of but still adores, especially as a competition partner; and Twyla, who goes against her expectations of being popular during the high school year but whose selflessness has helped Cleo at time, usually giving her advice and wise words. According to her profile bio, she is best friends forever with her boyfriend, Deuce Gorgon and with Ghoulia Yelps.
Despite her friendships, Cleo's popularity and personality have gained her several nemesis too, the most prominent one being Toralei Stripe and the werecat twins, Purrsephone and Meowlody. It all started when the werecats swore to make use of what they learned in delinquent prison, to overthrow those who rule, this being Cleo, the queen bee. Then, when Nefera chose Cleo over Toralei for squad captain, despite the difference in experience that would otherwise benefit Toralei, the rivalry between the two sparked for real, and the werecats gave up on the squad to make their own, to rival Cleo's yet inexisting squad. What they weren't expecting was the success of the replacements Cleo found, and were tempted to join again, though Cleo refused. Since then they're faithful to their promise to make Cleo's, and the Fear Squad's life a living nightmare, playing pranks and framing them on a daily basis. Cleo and Toralei act hostile to one another and constantly insult each other, cat fighting usually and throwing shade at each other, a toxic relationship of cat vs. rat. However, the two have shown signs of harmony when working together, and it is implied by Neighthan Rot that their problem is the lack of communication. Despite this, they can't stand each other no matter what.
Gory Fangtell is another opponent. Fresh from Belfry Prep, where Gory was the captain of the cheerleading squad, she's not willing to give up her status, and developed a low-key rivalry against Cleo, when her ambitions were denied.
Amanita Nightshade, her fellow "friend", also has a low-key rivalry, though she is much more subtle about it. She's sly with her insults, acting like she doesn't know what's going on. She has no specific reason to torment Cleo, she just enjoys it and the chaos it brings. Cleo can't stand her however, and for valid reasons, due to their unfortunate past, and because Amanita's "oblivious" façade annoys her to the core. She has suffered enough because of her and isn't willing to forgive her that easily or take up with her, though she has stated she'll try.
Cleo de Nile's pet is a snake named Hissette, whose attitude reflects Cleo's. In the Monster High book series, Deuce gave Hissette to Cleo as a gift, saying she was his mom's 'first gray hair', yet in her diary, Cleo stated that she was a gift from Egypt. In the books, Cleo also has seven cats named Chisisi, Bastet, Akins, Ebonee, Ufa, Usi, and Miu-Miu. This is a reference to how cats were worshiped by people and cherished and treasured, especially by royalty, in Ancient Egypt. She has a new Egyptian cat whose name is not released on the doll box in the reboot.
Cleo is currently dating Deuce Gorgon and the two of them are the 'it' couple on campus. She says he makes her feel at ease and makes her want to be a better person (via ). She previously dated Clawdeen Wolf's older brother Clawd. According to Ghoulia, it was a messy breakup and it didn't help that Cleo started dating Deuce the next day. However it is later revealed that the relationship between Clawd and Cleo was the result of C.A. Cupid's arrows. The effects masked Cleo's interest in Deuce until the spelled couple broke free, after which Cleo pursued her real feelings for Deuce. Cleo has stated that she believes that she and Deuce were "made for each other"  and enjoys spending time with him, even if they are just playing video games or making a home cooked meal . While Deuce occasionally gets tired of her competitive personality, his feelings for her are true. C.A. Cupid's SSS diary states that Cleo and Deuce started dating on November 1st.
In the reboot of Monster High in Welcome to Monster High, she and Deuce first meet through Monster High. It begins rocky when Deuce petrifies her by accident. Throughout the special she ignores Deuce, even when he helps her, until the end when they save one another from Zomboyz. Not much is said between them but warm looks are shared at the movie's end.
- July 11, 2008: Mattel requests the trademark for Cleo de Nile.
- May 05, 2010: The Monster High website goes live, featuring Cleo de Nile's profile.
- May 05, 2010: Cleo de Nile's profile art is revealed.
- May 05, 2010: Cleo de Nile makes her animated debut in the Higher Deaducation commercial.
- May 05, 2010: Cleo de Nile makes her 2D cartoon debut in "Jaundice Brothers".
- Early July, 2010: Cleo de Nile's debut doll is released as part of the 'Basic' series.
- Early July, 2010: Cleo de Nile makes her diary debut in her 'Basic' diary.
- September 01, 2010: Cleo de Nile makes her Monster High book debut in Monster High.
- Early December, 2010: Cleo de Nile's debut plushie is released as part of the Friends series.
- February 12, 2012: Cleo de Nile makes her 3D cartoon debut in "Why Do Ghouls Fall in Love?".
- September 05, 2012: Cleo de Nile makes her Ghoulfriends book debut in Ghoulfriends Forever.
- November 05, 2014: Cleo de Nile makes her anime debut in "The Golden Cleo de Nile".
- We learn in "Hiss-teria" that Cleo is afraid of spiders. This comes up again in "Escape From Skull Shores".
- The hieroglyphs on Cleo's vanity translate to Klio, the first part of how the real-life Cleopatra's name was spelled. In Ancient Egyptian, there is no letter representing an "e"-sound and phonetically the "e" in "Cleopatra" was and is treated as an "i". Meanwhile, Ancient Egyptian had three letters for "k", one for the "c/k" sound, one for the "kh" sound, and one for the "q/k" sound. Cleopatra's name was spelled with the letter "k".
- Her and Deuce's anniversary is November 1.