Cosmo Girl is an Atomic County character. He was developed by Seth Cohen. File:Cosmogirl.jpg Marissa in the Atomic County universe is CosmoLass (Cosmo Girl initially) and she’s still alive. In this universe she dates Kid Chino (Ryan Atwood). She possesses a magic bottle (that gives her superpowers) and she has a car named Cosmobile. In the animated series she has a lot of relationships, Battle Axe, Johnny tears, All American Boy and The Mentalist. Her archenemy is Mistress Widow, in the 7 episode she discovers that her mother is Mistress Widow and that one of her allies and ex-boyfriend (All American Boy) has an affair with her.