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SNL Character Highlight: Mary Katherine Gallagher

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SNL Character Highlight: Mary Katherine Gallagher

Revisit the best moments from SNL's recurring character Mary Katherine Gallagher, from her debut appearance in the St. Monica’s High School Talent Auditions to popular sketches featuring guests like Will Ferrell, Amy Poehler, Jimmy Fallon and more. Saturday Night Live. Stream now on Peacock: https://pck.tv/3n1IyzK St. Monica's High School ...

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