M
- Mace (Phil Hartman) – January 24, 1987
- MacGruber (Will Forte) – January 20, 2007
- The Mall (Scotch Boutique, D&R Men’s Stylists, Barry White’s Big and Tall, etc.) – October 14, 1978
- Mango (Chris Kattan) – October 18, 1997
- The Manuel Ortiz Show (Fred Armisen) – December 19, 2009
- Mark Strobel (Chris Farley) – November 2, 1991
- Marvin & Celeste (Tim Kazurinsky, Mary Gross) – October 2, 1982
- Mary Katherine Gallagher (Molly Shannon) – October 28, 1995
- Mary Louise (Denny Dillon) – December 6, 1980
- Mascots (Justin Timberlake) – October 11, 2003
- Master Thespian (Jon Lovitz) – December 7, 1985
- Matt Foley (Chris Farley) – May 8, 1993
- Melanie the Babysitter (Mark McKinney) – April 15, 1995
- Mel's Char Palace (Dan Aykroyd) – December 20, 1975
- Mephistopheles (Jon Lovitz) – January 25, 1986
- Merryville Carnival Ride – January 8, 2011
- Merv the Perv (Chris Parnell) – October 12, 2002
- Mickey The Dyke (Cheri Oteri) – September 30, 1995
- Middle-Aged Man (Mike Myers, Chris Farley) – October 20, 1990
- Mighty Mack Blues (John Goodman) – March 25, 1995
- Mike and Lexie (Fred Armisen, Scarlett Johanssen) – January 14, 2006
- Miles Cowperthwaite (Michael Palin) – January 27, 1979
- The Miley Cyrus Show (Vanessa Bayer) – October 2, 2010
- Milton (Office Space) – September 25, 1993
- Minute Mystery with Mike Mendoza (Dan Aykroyd) – November 15, 1975
- Miss Connie's Fable Nook (Jan Hooks, Dana Carvey, Dennis Miller, Kevin Nealon) – November 8, 1986
- Mister Robinson's Neighborhood (Eddie Murphy) – February 21, 1981
- Morning Latte (Cheri Oteri, Will Ferrell) – October 25, 1997
- Mort Mort Feingold - Accountant for the stars (Andy Samberg) – April 17, 2010
- The Mr. Bill Show – February 28, 1976
- Mr. Mike (Michael O'Donoghue) – January 17, 1976
- Mr. Peepers (Chris Kattan) – September 28, 1996
- Mr. Short-Term Memory (Tom Hanks) – October 8, 1988
- Mr. Subliminal (Kevin Nealon) – October 11, 1986
- Mrs. T. (Robin Duke) – October 2, 1982
Read more about this topic: Recurring Saturday Night Live Characters And Sketches