Mary Katherine Gallagher resides in the little town of Besamee Heights, where she goes to Catholic School and because her parents had died, lives with her grandmother. She is the rewind girl at her local video store, and ever since she was a little girl she'd dream of becoming a superstar so she could get kissed. So when she finds out that her school is having a talent contest, she is most eager to enter it, despite her grandmother's refusal. Played by the hysterically funny comedienne Molly Shannon, Mary Katherine Gallagher was first seen on the sketch comedy and variety show Saturday Night Live and later made her film debut in the 1999 comedy Superstar. In spite of her accident-prone personality, Mary Katherine is an inspirational character, who believes in her dreams so strongly, no matter who or what puts her down which is very admirable.