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In 1999 Shannon starred in Superstar a feature film based on her most famous SNL character Mary Katherine Gallagher the awkward Catholic school student who aspires to be a musical superstar. Baker in the film Good Boy!. Filmography
Saturday Night Live characters
Original characters
Mary Katherine Gallagher Shannon's best known character.
Throughout Shannon's career Molly Shannon has appeared in a number of films in supporting roles. More recently Molly Shannon starred in NBC's Kath & Kim from 2008 to 2009 and on the TBS animated series Neighbors from Hell. Molly Helen Shannon (born September 16 1964) is an American comic actress best known for her work as a cast member on Saturday Night Live from 1995 to 2001 and for starring in the films Superstar and Year of the Dog.