Which "Saturday Night Live" actress, who won an award for her work in "Other People", played the character Mary Katherine Gallagher?
Mary Katherine Gallagher: Mary Katherine Gallagher is a fictional character invented and portrayed by "Saturday Night Live" cast member Molly Shannon from 1995 to 2001. Molly Shannon: Molly Helen Shannon (born September 16, 1964) is an American comic actress who was a cast member on "Saturday Night Live" from 1995 to 2001. Molly Shannon:  In 2017 she won the Film Independent Spirit Award for Best Supporting Actress for her role in the film "Other People".
Molly Helen Shannon