Mimzy is shown to be a short and chubby woman with thick thighs, wide hips, and plump breasts. Her eyes are pitch black and the pupils are hot pink, she has sharp teeth and wears makeup. Her hair is short and blonde, and Mimzy wears a typical 1920s flapper-like pink dazzling dress and a pink headband with pink feathers. She wears a pink necklace.
She appears to be very cheerful and confident in her actions. She's very proud of herself and her singing.
- Her name is a nonce-word created by author Lewis Carroll which means 'a blend of miserable and flimsy'.
- Viv's headcanon voice for Mimzy is a heavy Brooklyn-accent based on Adelaide from the musical Guys and Dolls and Roxie Hart from Chicago.
- In pre-Hazbin Hotel, Mimzy was "head over heels in love" with Alastor, information that is now an outdated joke.[note 1] It's also stated Mimzy was best friends with Niffty, but this may also be outdated.
- Her role in the series is currently unknown, but she does make a cameo appearance in the musical number "Inside of Every Demon is a Rainbow" in the pilot episode "That's Entertainment".
- When asked if Mimzy is going to be a main character, Vivziepop said that when she joins she'll probably be more main than Baxter or Crymini. She also said she's an easier character to write stories for than Crymini or Baxter, so she thinks she is more main than them.
- Mimzy is materialistic.[note 2]
|Hazbin Hotel||Helluva Boss|
|Main characters||Charlie Magne • Vaggie • Angel Dust • Alastor • Husk • Niffty||Blitzo • Millie • Moxxie • Loona|
|Supporting characters||Cherri Bomb • Fat Nuggets • Sir Pentious • The Egg Bois • Razzle and Dazzle • Katie Killjoy • Tom Trench||Stolas • Cletus • Collin • Keenie • Octavia • Robo Fizz • Verosika Mayday • Wally Wackford • Striker|
|Minor Characters||Crymini • Exorcists • Helsa von Eldritch • Lilith Magne • Lucifer Magne • Mimzy • Travis||Barbie Wire • Catfish Monster • Eddie • Joe • Lin • Loo Loo • Loopty Goopty • Lyle Lipton • Martha • Mrs. Mayberry • Ralphie • Sallie May • Stella • Verosika's crew • Vortex|
|Overlords||Alastor • Rosie • Valentino • Velvet • Vox|
|Other Characters||Arackniss • Baxter • "Henroin" • Molly • Seviathan von Eldritch||Fizzarolli • Tilla • Mammon|