Robecca Steam is a daughter of a Mad Scientist named Hexiciah Steam.
Robecca is polite and eager to please. She's always running late due to a defect in her machinery, but she always tries to make up her mistakes. Robecca arrives late all the time, she says that she sets clocks and watches but they don't work. She's a bit clumsy, but she's also very kind hearted on the other hand.
Robecca's "skin" is copper brown, with several patches , bolts and rivets including two gears on the backside of her calf. Her wavy hair is black with blue streaks. She has rocket boots and wears goggles.
As a simulacrum, Robecca does not have family in the same way natural creatures have. However, she and her creator, a Mad Scientist by the name of Hexiciah Steam consider each other father and daughter.
After the disappearance of her father, Robecca came to live permanently with Kindergrubber, who's become an unofficial adoptive mother figure to Robecca and was the one that made her enroll at Monster High. Recently, Hoodude Voodoo has come to live under the same roof as them, but it's unknown how Robecca views him.
Her best friends are Rochelle Goyle and Venus McFlytrap. Frankie Stein and Draculaura are good friends with her.
She has no lover yet.
As a robot, she has power of super strength, super-speed and boot jetpacks.
- Her favorite subject is "Metal Shop".
- Her father got some inspiration about her from the droid body of the Kraang.
- She is powered by the Vampire Heart.
- She doesn't know that her father once worked for the Kraang.