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Operetta debuted in the in the Volume 2 webisode " cartoon series Hiss-teria", which premiered on September 29, 2011. She is voiced by Gigi Sarroino and Cindy Robinson in the English version of the cartoon.
Hiss-teria Phantom of the Opry The Bermuda Love Triangle Here Comes Treble Monster Mashionals Part 1
Monster Mashionals Part 2
Kind: The Shockumentary
Webisodes Uncommon Cold Hickmayleeun Night of a Thousand Dots Boo Year's Eve Fright Dance Fierce Crush Flowers for Slow Moe Party Undead Clawbacks The Stich-uation
Playing the Boos
TV specials Why Do Ghouls Fall in Love? Escape From Skull Shores Friday Night Frights Ghouls Rule Scaris: City of Frights 13 Wishes Frights, Camera, Action!
Welcome to Hauntlywood
Operetta is one of the many fans of
Clawdia Wolf's stories.
Tales from the Script
Just Ghost to Show Ya Join the Scream Stage Frightened Master of Hiss-guise
Catrine DeMew and another student to Monster High.
We are Monster High
I Casta Spell On You Gloom and Bloom, Part 1
Gloom and Bloom, Part 2
Haunted Boo York, Boo York
Great Scarrier Reef
Spectra and Operetta arguing before the Kind Campaign.
Spectra and Operetta talking after the Kind Campaign.
Operetta, evilly planning to steal Deuce from Cleo....
Cleo 'apologizing' to Operetta
Memphis and Operetta jamming it out.
Operetta and the ghouls in their party outfits
Operetta trying to eat biscuits and gravy, but stopped by Cleo's horn.
TV special gallery
"The whole dang holiday was created just for her!". (Her meaning Draculaura)
In the Creepateria with Frankie
Operetta in "Ghouls Rule"
Draculaura and Operetta texting on their iCoffins.
Operetta's singing and yelling powers (pink-red ultra-loud circles in 3D visual effects with animation.)
Operetta kissing her hand for the enemy (on her Skultimate Roller Maze Outfit).
In the Volume 5 webisodes, Operetta has hair more accurate to her finalized ' ' look, with the wictory rolls, her bracelet on her right wrist instead of her left wrist, and the hairstyle not having the white streaks.