| McClemens, Julie | Julie McClemens | Actor | 1996 | 1 | |
| McClennahan, Charles H. | Charles H. McClennahan (Charles H. McClennahan) | Designer | 1989 | 1 | |
| McCleskey, Ruth, S. | Ruth S. McCleskey | Actor | 2012 | 1 | 2 |
| McClinden, Christopher | Christopher McClinden | Actor | 2004 - 2018 | 2 | |
| McClish, Amanda | Amanda McClish | Actor | 2009 | 6 | |
| McCloskey, Eileen | Eileen McCloskey | Actor | 1990 | 2 | |
| McCloskey, Leo | Leo McCloskey | Actor | 1977 | 1 | |
| McCloskey, Michael | Michael McCloskey | Lighting Designer | 1956 | 1 | |
| McCloskey, Steven | Steven McCloskey | Actor | 1983 | 6 | |
| McCluer, Carol | Carol McCluer (Carol McCluer) | Actor | 2001 - 2009 | 2 | |
| McClure, Keven | Keven McClure (Keven McClure) | Actor | 1944 - 1945 | 4 | |
| McClure, Laura | Laura McClure (Laura McClure) | Actor | 1936 | 1 | |
| McClure, Trina | Trina McClure | Actor | 1999 | 1 | |
| McColeman, Kate | Kate McColeman | Actor | 1990 | 3 | |
| McColl, Colin | Colin McColl (Colin McColl) | Actor, Director | 1969 - 2017 | 13 | |
| McColl, R., M. | R. M. McColl | Actor | 1925 | 1 | |
| McCollom, William | William McCollom | Director | 1951 | 1 | |
| McCollum, Robert | Robert McCollum | Choreographer | 2004 | 1 | |
| McColly, Michael | Michael McColly | Actor | 1979 | 1 | |
| McComas, Natalie | Natalie McComas | Actor | 2006 | 3 | |
| McConaghy, Sean | Sean McConaghy | Actor | 2004 - 2021 | 2 | |
| McConnell, Frederic | Frederic McConnell (Frederic McConnell) | Director | 1922 - 1930 | 3 | |
| McConnell, Marina | Marina McConnell | Actor | 1961 | 1 | |
| McConnell, Maureen | Maureen McConnell | Actor | 2001 | 1 | |
| McConnell, Phil | Phil McConnell | Director | 2001 | 1 | |
| McConnell, Robert | Robert McConnell | Actor | 2011 | 1 | |
| McConnochie, Rhys | Rhys McConnochie | Actor | 1984 | 1 | |
| McCord, Catherine | Catherine McCord (Catherine McCord) | Actor | 1935 | 1 | |
| McCord, Jack | Jack McCord | Lighting Designer | 2003 | 1 | |
| McCord, Michael | Michael McCord (Michael McCord) | Designer | 2000 | 1 | |
| McCormack, Catherine | Catherine McCormack | Actor | 2008 | 2 | |
| McCormack, Sanchia | Sanchia McCormack | Actor | 2012 | 1 | |
| McCormick, Bonnie | Bonnie McCormick | Actor | 2003 | 1 | |
| McCormick, Carolyn | Carolyn McCormick | Actor | 1999 - 2016 | 2 | |
| McCormick, F.J. | F. J. McCormick | Actor | 1923 - 1929 | 5 | |
| McCormick, Martin | Martin McCormick | Actor | 2007 - 2009 | 8 | |
| McCourt, Margareth | Margareth McCourt (Margareth McCourt) | Actor | 1953 | 1 | |
| McCowan, George | George McCowan | Actor, Director | 1957 - 1978 | 2 | |
| McCoy-Reese, Rebecca | Rebecca McCoy-Reese | Director | 2019 | 1 | |
| McCoy, Jody | Jody McCoy | Actor | 2013 | 1 | 2 |
| McCoy, Kevin | Kevin McCoy | Actor | 2022 | 2 | |
| McCoy, Michael | Michael McCoy (Michael McCoy) | Sound Designer | 1992 | 3 | |
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