D'eath is a 2010-introduced and fiction-only character. He is a skeleton and the guidance counselor at Monster High. He is not the most suitable person for his job, though, as he's sloppy, easily distracted, and not guaranteed to keep his cool better than the students invited to talk with him. He is perfectly capable of mixing up students even when they're different monster types and he gets nervous around humans. He is aware of his own shortcomings, but his habit is to indulge in self-pity rather than improve.
Though Mr. D'eath hasn't had much screen time in the Monster High webisodes, he plays quite an important role in the book Ghoulfriends Forever. Two of his most notable personality traits are his habit of constantly sighing and keeping a 'regret list,' which he describes as a comprehensive record of all the things he plans on regretting before the death of his soul.
Mr. D'eath usually dresses in a simple black, hooded cloack and accessorizes with a blue tie, but he also has some old and stained brown sweaters and trousers to wear. He does not actually like this despondent look, but he thinks it suits his miserable personality.
D'eath is a skeletal creature whose outfit and contradictory happy persona play into the character of the Grim Reaper.
Skeletons are, of all types of undead, the ones most used to represent death. In European tradition, this association particularly took off in the late 14th century, when war, disease and famine were the more likely alternative to living another day safe and sound. Around this time, the Dance of Death genre was introduced, which used skeletons in its imageries as transitional characters between the joys of life and the inevitability of death. From this are the representation of death as a skeletal entity, the Grim Reaper in English, who in the 15th century received his scythe and black hooded cloak attributes.
It would've been another forgetable and regretable school year for Mr. D'eath had Rochelle Goyle not decided to enroll. The gargoyle's protective nature immediately takes note of his need for intervention and after he tries to drown himself in two inches of split pea soup in the creepateria, she makes contact. He's not comfortable with a student getting personal with him, but there's no solid rules against it, so he allows Rochelle to help him. The first two steps of Rochelle's plan are updating his wardrobe and arranging a date for him and in both cases she gets help from Sylphia Flapper, the gorgeous and popular teacher of Dragon Whispering 101. She herself volunteers to go on a date with Mr. D'eath, which Rochelle is thrilled about. However, Flapper only intends to use the opportunity to add D'eath to her army of mind-control victims and she succeeds in this. The next day, D'eath makes Rochelle cry with his sudden hostile behavior towards her. Like everyone else, he is not freed until a few days later by the efforts of Venus, Rochelle, Robecca, and Cy.
- Mid September, 2010: D'eath is introduced in the Fearbook.
- Late March, 2012: D'eath makes his diary debut in Jackson Jekyll's 'Between Classes' diary and Rochelle Goyle's 'Between Classes' diary.
- September 05, 2012: D'eath makes his Ghoulfriends book debut in Ghoulfriends Forever.
- D'eath is remarkably similar to G. Reaper, who's been featured exclusively in the cartoon. In fact, issue #10 of the UK magazine conflates the two by mixing D'eath's artwork and write-up with G. Reaper's name. It's possible Mattel intends them to be the same character, though the exact situation is currently unclear.