|“||FREEDOM AND JUSTICE SHALL ALWAYS PREVAIL OVER TYRANNY, BABY SITTER GIRL!||„|
|~ Stupendous Man|
Baby Sitter Girl is an archenemy of Stupendous Man, an alter ego of Calvin. She is actually an alter ego of Rosalyn, Calvin's babysitter.
When Calvin is babysat by Rosalyn, he decides to fight and dress up like Stupendous Man. He sneaks to Rosalyn who is ringing up her boyfriend Charlie. Suddenly, Stupendous Man jumps at her, throws her down from a chair and fight her. She is eventually capable to stand up and uses her " psycho-beam" to weaken his stupendous will. Stupendous Man quickly runs out of the house and hides in his treehouse. Baby Sitter Girl starts to look for him with a torch. Meanwhile, Stupendous Man returns home, gets to his bed and pretends to be "meed and mild-mannered Calvin". After half an hour Rosalyn notices the light in his bedroom, walks in and forces Calvin to write a confession for his parents.