| McWilliams, Brandon R. | Brandon R. McWilliams | Costume Designer | 2008 | 1 | |
| McWilliam, Lachlan | Lachlan McWilliam | Actor | 2007 | 1 | |
| McWhinnie, Donald | Donald McWhinnie | Director | 1959 - 1982 | 2 | 1 |
| McWeeny, Jim | Jim McWeeny | Actor | 1979 | 1 | |
| McVicker, Sarah | Sarah McVicker | Actor | 1907 | 1 | 1 |
| McVicker, Chris | Chris McVicker | Designer, Lighting Designer | 2019 | 2 | |
| McVay, Nathan | Nathan McVay | Actor | 2009 | 1 | |
| McTeer, Janet | Janet McTeer | Actor | 1996 - 1997 | 3 | 2 |
| McTague, Patrick | Patrick McTague | Actor | 2019 | 1 | |
| McTaggart, Rod | Rod McTaggart | Actor | 2018 | 1 | |
| McSweeney, Kevin | Kevin McSweeney | Director | 2001 | 2 | |
| McSpadyen, John | John McSpadyen | Director | 2004 | 1 | |
| McSpadden, Jenni | Jenni McSpadden | Lighting Designer | 1997 | 1 | |
| McSorley, Gerard | Gerard McSorley | Actor | 1993 | 1 | |
| McSharry, Carmel | Carmel McSharry | Actor | 1958 | 1 | |
| McShane, Matthew | Matthew McShane | Actor | 2013 | 1 | |
| McShane, Marcus | Marcus McShane | Lighting Designer | 2017 | 1 | |
| McSeveney, David | David McSeveney | Sound Designer | 2012 - 2016 | 5 | |
| McRobie, Brenda | Brenda McRobie | Director | 1990 | 1 | |
| McRobbie, Peter | Peter McRobbie | Actor | 1966 - 1992 | 9 | 1 |
| McRae, Katherine | Katherine McRae | Director | 2017 | 1 | |
| McRae, Hilton | Hilton McRae | Actor | 1993 - 2003 | 3 | |
| McRae, Bruce | Bruce McRae | Actor | 1905 - 1908 | 7 | 1 |
| McQuoid, Jack | Jack McQuoid | Actor | 1972 | 1 | |
| McQueen, Vincent | Vincent McQueen | Actor | 1956 - 1999 | 2 | |
| McQueen, Steve | Steve McQueen | Actor, Producer | 1978 | 2 | |
| McQuade, Kris | Kris McQuade | Actor | 1971 | 2 | |
| McQuade, John | John McQuade | Actor | 1961 | 1 | 1 |
| McPherson, Mary | Mary McPherson | Actor | 1969 | 1 | |
| McPherson, Marge | Marge McPherson | Actor | 1951 | 1 | |
| McPherson, Jean Earl | Jean Earl McPherson | Actor | 2016 | 1 | |
| McPherson, Coco | Coco McPherson | Actor | 1989 - 1995 | 6 | 1 |
| McPherson, Brian | Brian McPherson | Sound Designer | 2002 | 1 | |
| McPherson, Alexander | Alexander McPherson | Costume Designer, Designer | 1971 - 1982 | 3 | |
| McPhedrin, Joan | Joan McPhedrin | | | | |
| McNutt, Patterson | Patterson McNutt | Producer | 1926 - 1927 | 7 | |
| McNulty, Nancy | Nancy McNulty | Actor | 2003 | 2 | |
| McNulty, Finnuala | Finnuala McNulty | Lighting Designer | 2001 - 2008 | 14 | |
| McNicholl, Colin | Colin McNicholl | Actor | 1983 | 1 | |
| McNern, Samantha | Samantha McNern | Director | 2013 | 1 | |
| McNenny, Kathleen | Kathleen McNenny | Actor | 2012 | 1 | 1 |
| McNeill, Mildred | Mildred McNeill | Actor | 1908 | 1 | 1 |
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