Rosie is a slender demon with pale white skin, sharp white teeth and a really long neck. She sports short hair though it could be tied up under the hat and, similar to Alastor, she is always smiling. She wears a red dress with gray shoulder pads, a black belt, and black wrists. Her red sun hat has two skulls and three black flowers on the front side with a large red and black plume on the top side.
Not much is known about Rosie at the moment, though Vivziepop describes her as very capable, articulate, friendly. Faustisse describes Rosie’s personality as genteel and elegant,[note 1] and likens her to the character Dolly Levi from the movie Hello, Dolly!.[note 2] However, she doesn’t seem to be particularly sensitive to the death of her associate Franklin in her first scene, as she is seen crossing off his name on their sign without a care, hinting she lacks empathy like most demons or just didn’t care that much about Franklin.
- Vivziepop says Rosie and Alastor's relationship is similar to Mary and Jack's relationship from Mary Poppins Returns.
- Vivzie's headcanon voice actor for her would be Barbara Streisand from Hello, Dolly!.
- Faustisse confirmed that there will be a duet with Rosie and Alastor in one of the future episodes of Hazbin Hotel.
- According to Faustisse, Rosie is a 2 or 3 on a scale of 1 to 10 in terms of power when compared to the other overlords.[note 3]
- Faust also stated Rosie never died, suggesting that she was born in hell.[note 4]
|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|