| McCann, Donal | Donal McCann | Actor | 1993 | 1 | |
| McCann, Reid | Reid McCann | Sound Designer | 2012 | 1 | |
| McCardie, Brian | Brian McCardie | Actor | 2013 - 2015 | 5 | |
| McCardle, Dillon | Dillon McCardle | Sound Designer | 2014 | 1 | |
| McCardle, Helene | Helene McCardle | Actor | 2008 | 1 | |
| McCarroll, Mikyla | Mikyla McCarroll | Actor | 2019 | 1 | |
| McCarroll, Shannon | Shannon McCarroll | Actor | 2019 | 1 | |
| McCartan, Simon | Simon McCartan | Actor | 2006 | 1 | 1 |
| McCarter, Janet | Janet McCarter | Actor | 2018 | 1 | |
| McCarthy, Claire-Elizabeth | Claire-Elizabeth McCarthy (Claire-Elizabeth McCarthy) | Actor | 2002 | 1 | |
| McCarthy, Ed | Ed McCarthy | Lighting Designer | 1994 | 1 | |
| McCarthy, Eoin | Eoin McCarthy (Eoin McCarthy) | Actor | 2000 - 2003 | 2 | |
| McCarthy, Fionnuala | Fionnuala McCarthy | Actor | 2011 | 1 | |
| McCarthy, Helena | Helena McCarthy (Helena McCarthy) | Actor | 1994 | 6 | |
| McCarthy, James | James McCarthy | Actor | 1948 | 2 | |
| McCarthy, Jefferson | Jefferson McCarthy | Composer, Sound Designer | 2021 | 2 | |
| McCarthy, Joseph | Joseph McCarthy | Actor | 2018 | 40 | |
| McCarthy, Julia | Julia McCarthy | Actor | 1958 - 1970 | 3 | |
| McCarthy, Julianna | Julianna McCarthy | Actor | 1986 | 1 | |
| McCarthy, Lillah | Lillah McCarthy (Lillah McCarthy) | Actor | 1911 | 1 | |
| McCarthy, Mary | Mary McCarthy | Actor | 1959 | 1 | |
| McCarthy, Michael | Michael McCarthy | Composer, Dramaturg | 2012 - 2020 | 3 | |
| McCarthy, Neil | Neil McCarthy | Actor | 1994 | 1 | |
| McCarthy, Paris | Paris McCarthy | Actor | 2007 | 1 | |
| McCarthy, Sean | Sean McCarthy (Sean McCarthy) | Translator | 1982 | 1 | |
| McCarthy, Sheila | Sheila McCarthy | Choreographer | 1935 - 1936 | 2 | |
| McCartie, Catherine | Catherine McCartie | Actor | 1949 | 1 | |
| McCarty, Joel | Joel McCarty | Lighting Designer | 1969 - 1970 | 3 | |
| McCasland, Steven, Carl | Steven Carl McCasland | Director | 2012 | 1 | |
| McCaughey, Barbara | Barbara McCaughey | Actor | 1961 | 1 | |
| McCaul, Ruth Rayyah | Ruth Rayyah McCaul (Ruth Rayyah McCaul) | Actor | 2005 | 1 | |
| McCauley, Georgi | Georgi McCauley | Actor | 2013 | 1 | |
| McCauley, Peter | Peter McCauley | Actor | 1990 - 2019 | 10 | |
| McCausland, Bob | Bob McCausland | Actor | 1963 | 1 | |
| McCaw, Kaylene | Kaylene McCaw | Costume Designer | 2010 | 1 | |
| McCaw, Robert | Robert McCaw (Robert McCaw) | Lighting Designer | 1964 | 1 | |
| McClain Wilson, Mark | Mark McClain Wilson | Actor | 2006 | 1 | |
| McClain, Amelia | Amelia McClain | Actor | 2005 - 2020 | 2 | |
| McClain, LeRoy | LeRoy McClain | Actor | 2002 | 1 | |
| McClain, Mark | Mark McClain | Choreographer | 2015 | 1 | |
| McClay, Alex | Alex McClay | Actor | 1972 | 1 | |
| McCleery, Albert | Albert McCleery | Director, Producer | 1947 - 1952 | 3 | |
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