| Cropp, Harold N. | Harold N. Cropp | Actor | 1998 - 2003 | 3 | 1 |
| Cassiers, Guy | Guy Cassiers | Dramaturg | 2003 - 2004 | 9 | 1 |
| Collins, Judy | Judy Collins | Actor | 1969 | 1 | 1 |
| Campodonico, Cesar | Cesar Campodonico | Actor, Adaptation, Director | 1961 - 1997 | 3 | 1 |
| Cronberg, Sara | Sara Cronberg | Adaptation, Director | 2004 - 2011 | 5 | 1 |
| Carey, Helen | Helen Carey | Actor | 1968 - 2009 | 3 | 1 |
| Costa, Julia | Julia Costa | Actor | 1964 - 1968 | 2 | 1 |
| Cannan, Denis | Denis Cannan | Adaptation | 1967 | 1 | 1 |
| Castle, John | John Castle | Actor | 1967 | 1 | 1 |
| Chamberlin, Jayne | Jayne Chamberlin | Actor | 1967 | 1 | 1 |
| Carlqvist, Margit | Margit Carlqvist | Actor | 1955 - 1967 | 4 | 1 |
| Campbell, Douglas | Douglas Campbell | Actor, Director | 1953 - 1978 | 6 | 1 |
| Calvert, Henry | Henry Calvert | Director | 1966 | 1 | 1 |
| Csíky, András | András Csíky | Actor | 1972 - 2004 | 2 | 1 |
| Csomós, Lajos | Lajos Csomós | Actor | 2007 | 1 | 1 |
| Cornet, Nathalie | Nathalie Cornet | Actor | 2002 - 2004 | 5 | 1 |
| Chappuis, Anne | Anne Chappuis | Actor | 2002 - 2004 | 5 | 1 |
| Claire, Anne | Anne Claire | Actor | 2002 - 2004 | 5 | 1 |
| Cavey, George | George Cavey | Actor | 2002 | 1 | 1 |
| Compton, J. C. | J. C. Compton | Director | 1998 - 2002 | 5 | 1 |
| Clamer, Raphael | Raphael Clamer | Actor | 2002 | 1 | 1 |
| Coffey, Julia | Julia Coffey | Actor | 2002 - 2016 | 2 | 1 |
| Csemiczky, Miklós | Miklós Csemiczky | Composer | 2002 | 1 | 1 |
| Caballero, Joel | Joel Caballero | Actor | 2002 | 1 | 1 |
| Csutak, Réka | Réka Csutak | Actor | 2012 - 2017 | 7 | 1 |
| Chalmers, Jessica | Jessica Chalmers | Adaptation | 1989 | 1 | 1 |
| Carty, Mairead | Mairead Carty | Actor | 2003 | 7 | 1 |
| Cofalka-Adami, Klaus | Klaus Cofalka-Adami | Actor | 2003 | 2 | 1 |
| Cotton, Oliver | Oliver Cotton | Actor | 2003 | 2 | 1 |
| Cederhök, Sten-Åke | Sten-Åke Cederhök | Actor | 1989 - 1998 | 2 | 1 |
| Clein, Louisa | Louisa Clein | Actor | 2003 | 1 | 1 |
| Cumberbatch, Benedict | Benedict Cumberbatch | Actor | 2003 - 2005 | 3 | 1 |
| Conway, Denis | Denis Conway | Actor | 2003 - 2013 | 2 | 1 |
| Cheadle, Phil | Phil Cheadle | Actor | 2003 | 1 | 1 |
| Csákányi, Eszter | Eszter Csákányi | Actor, Adaptation | 2005 - 2007 | 35 | 1 |
| Cunningham, T. Scott | T. Scott Cunningham | Actor | 2003 | 1 | 1 |
| Csuja, Imre | Imre Csuja | Actor | 2012 | 1 | 1 |
| Chroboková-Tomicová, Naděžda | Naděžda Chroboková-Tomicová | Actor | 2012 | 1 | 1 |
| Chang, Judy | Judy Chang | Costume Designer | 2003 | 1 | 1 |
| Carruthers Huisenga, Nancy | Nancy Carruthers Huisenga | Actor | 2004 - 2009 | 10 | 1 |
| Carleton, Don | Don Carleton | Adaptation, Composer, Director, Translator | 2004 - 2012 | 5 | 1 |
| Cuskern, Dominic | Dominic Cuskern | Actor | 2004 - 2016 | 3 | 1 |
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