| 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 |
| McNeil, Heidi | Heidi McNeil | Actor | 2004 | 1 | |
| McNeely, Jerry | Jerry McNeely | Actor | 1950 | 1 | |
| McNee, Jodie | Jodie McNee | Actor | | 1 | |
| McNaught, Peggy | Peggy McNaught | Actor | 1930 | 1 | |
| McNamee, Eddie | Eddie McNamee | Actor | 1968 | 1 | |
| McNamara, Robert | Robert McNamara | Director | 2012 | 1 | 1 |
| McNamara, Melody | Melody McNamara | Actor | 1984 | 2 | |
| McNamara, George | George McNamara | Actor, Dancer | 1923 - 1924 | 4 | |
| McNamara, Frank | Frank McNamara | Actor | 2005 | 1 | |
| McNamara, Eileen | Eileen McNamara | Actor | 1994 | 1 | |
| McNamara, Dermot | Dermot McNamara | Director | 1971 | 1 | |
| McNamara, Cienda | Cienda McNamara | Director | 2008 | 1 | |
| McNamara, Annie | Annie McNamara | Actor | 1998 | 1 | |
| McNamara, Amanda | Amanda McNamara | Costume Designer, Designer | 1987 | 2 | |
| McNamara, Adam | Adam McNamara | Actor | 2019 | 2 | |
| McNally, Mary | Mary McNally | Actor | 2000 | 1 | |
| McNally, Francis | Francis McNally | Actor | 2019 | 1 | |
| McNall, Sean | Sean McNall | Actor | 2005 | 1 | 1 |
| McNairy, Emma | Emma McNairy | Actor | 2024 | 1 | |
| McNair, Leon | Leon McNair | Actor | 2010 | 1 | |
| McNair, Emily | Emily McNair | Actor | 1948 | 2 | |
| McNae, Jenny | Jenny McNae | Actor | 1991 | 1 | |
| McMurtry, Jonathan | Jonathan McMurtry | Actor | 2010 | 1 | 1 |
| McMurtrey, Joan | Joan McMurtrey | Actor | 1984 | 2 | |
| McMurdo-Wallis, Cristine | Cristine McMurdo-Wallis | Actor | 1990 | 1 | |
| McMullen, William, L. | William L. McMullen | Actor | 1981 | 1 | |
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