| Creutznach, Adele | Adele Creutznach | Actor | 1921 - 1922 | 3 | |
| Coleman, Basil | Basil Coleman | Actor, Director | 1945 - 1974 | 3 | |
| Corington, William | William Corington | Actor, Director | 1946 | 3 | |
| Christogiannopoulos, L. | L. Christogiannopoulos | Actor | 1946 - 1947 | 3 | |
| Croft, Paddy | Paddy Croft | Actor | 1948 | 3 | |
| Castro, José | José Castro | Actor | 2000 | 3 | |
| Cooke, Anne, M. | Anne M. Cooke | Director | 1949 | 3 | |
| Conliffe, Jeannette | Jeannette Conliffe | Actor | 1949 | 3 | |
| Caibăr, Oana | Oana Caibăr | Lighting Designer | 2016 | 3 | |
| Constantinescu, Titel | Titel Constantinescu | Adaptation, Director | 1984 - 1989 | 3 | |
| Coveney, Howard | Howard Coveney | Actor | 1908 | 3 | |
| Crabtree, Vernon, O. | Vernon O. Crabtree | Actor | 1908 | 3 | |
| Chatterjee, Soumitra | Soumitra Chatterjee | Actor, Translator | 1989 - 2016 | 3 | |
| Curran, Lee | Lee Curran | Lighting Designer | 2017 - 2020 | 3 | |
| Coram, Giles | Giles Coram | Actor | 2017 | 3 | |
| Conn, Bill | Bill Conn | Actor | 1978 | 3 | |
| Chivot, Léonard | Léonard Chivot | Actor | 2018 | 3 | |
| Claesen, Frk. | Frk. Claesen | Actor | 1884 | 3 | |
| Condon, Pat | Pat Condon | Actor | 1969 | 3 | |
| Cayo, Bosco | Bosco Cayo | Dramaturg | 2014 - 2020 | 3 | |
| Catarineu, Roberto | Roberto Catarineu | Actor | 1994 | 3 | |
| Chudoleev, Ivan. | Ivan Chudoleev (Hudoleev) | Actor, Director | 1907 - 1911 | 3 | |
| Coruzzi, Paolo | Paolo Coruzzi | Actor, Composer, Director | 2008 | 3 | |
| Cotterill, Philip | Philip Cotterill | Actor | 2020 | 3 | |
| Cahn, Kamran | Kamran Cahn | Actor, Director, Producer | 2007 | 3 | |
| Cherpillod, Lorianne | Lorianne Cherpillod | Actor | 2018 | 3 | |
| Chappuis, Stéphane | Stéphane Chappuis | Musician | 2018 | 3 | |
| Carriles, Lupe | Lupe Carriles | Actor | 1954 - 1956 | 2 | |
| Casanueva, Manuel | Manuel Casanueva | Actor | 1954 - 1956 | 2 | |
| Cordero, José Antonio | José Antonio Cordero | Director, Producer | 2006 | 2 | |
| Cahill, James | James Cahill | Actor | 1969 - 1975 | 2 | |
| Caldwell, George | George Caldwell | Designer, Director | 2005 | 2 | |
| Calhaem, Lionel, | Lionel Calhaem | Actor | 1889 - 1891 | 2 | |
| Callegaro, Gaetano | Gaetano Callegaro | Actor | 2006 | 2 | 1 |
| Cambray, Raphaëlle | Raphaëlle Cambray | Actor | 2003 | 2 | |
| Camp, Bill, | Bill Camp | Actor | 1992 - 1998 | 2 | |
| Capell, Peter | Peter Capell | Actor, Director | 1940 - 1962 | 2 | |
| Capurro, Soledad | Soledad Capurro | Costume Designer, Designer | 1989 | 2 | |
| Casazza, Jeff | Jeff Casazza | Director | 2008 - 2014 | 2 | |
| Cassola, Manuela, | Manuela Cassola | Actor | 1998 - 2004 | 2 | |
| Casson, Bronwen | Bronwen Casson | Costume Designer, Designer | 1982 | 2 | |
| Cavaille-Coll, J-L, | J-L Cavaille-Coll | Designer, Sound Designer | 2002 | 2 | |
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