Mary Gross (born March 25, 1953)^[1] is an American voice actress, comedian, and actress known for her four-year stint on Saturday Night Live from 1981 to 1985 and her recurring role as Sabrina's favorite teacher, Mrs. Quick in Sabrina, the Teenage Witch from 1997 to 2000. Her credits also include minor roles on Animaniacs, Boston Legal, That's So Raven, and Six Feet Under.

A Chicago native, Gross is the youngest of three children born to William Oscar Gross, a tool designer, and Virginia Ruth (née Cahill), a telephone operator (the eldest being actor Michael Gross).^[2][3] She attended Chicago's Madonna High School—an all-girls Catholic school, since demolished^[2]—and Loyola University.^[4] While in high school, Gross made her performing debut—singing, in character, as France's Louis XIV, to the tune of Bernstein and Sondheim's "I Feel Pretty"—alongside fellow Madonna alumnus Marilu Henner.^[2][4][5]

Gross has never married, but as of June 1982, Chicago-based photographer Jay King was referred to as "her longtime boyfriend" in a profile/interview of Gross penned by Chicago Sun-Times writer Michael Davis.^[4] Duration aside, their relationship was also reported that year by the Chicago Tribune's Jon Anderson and several years later by researcher-author Mary Unterbrinker.^[5][11]