About
Molly Shannon is an American actress and comedian widely known for her work on Saturday Night Live. She was a cast member on SNL from 1995 to 2001, where she created memorable characters like Mary Katherine Gallagher. Shannon has also appeared in numerous films and television shows. In 2017, she won the Film Independent Spirit Award for her role in the film Other People.
Career Timeline
Joins Saturday Night Live
Becomes a cast member on Saturday Night Live (SNL).
Mary Katherine Gallagher Debut
Creates the memorable character Mary Katherine Gallagher on SNL.
Leaves Saturday Night Live
Departs from SNL to pursue film and television opportunities.
Year of the Dog
Acts in 'Year of the Dog', expanding beyond comedic roles.
Other People Film
Wins a Film Independent Spirit Award for her role in Other People.
Prolific TV and Film Work
Continues to work consistently in television and film projects.
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Last updated: February 21, 2026