| Cree, Rick | Rick Cree | Designer, Lighting Designer | 2008 | 2 | |
| Cherian, Anita | Anita Cherian | Dramaturg | 2008 | 2 | |
| Chop, Eleonore | Eleonore Chop | Actor | 1968 | 2 | |
| Costa, Julia | Julia Costa | Actor | 1964 - 1968 | 2 | 1 |
| Csendes, László | László Csendes | Actor | 1970 - 1982 | 2 | |
| Capodilupo, Tony | Tony Capodilupo | Actor | 1967 | 2 | |
| Cranmer, Sarah | Sarah Cranmer | Actor | 1967 | 2 | |
| Cranney, Jon | Jon Cranney | Actor | 1966 | 2 | |
| Campbell, Charles | Charles Campbell | Actor | 1951 - 1966 | 2 | |
| Chromek, Rudolf | Rudolf Chromek | Actor | 1960 - 1966 | 2 | |
| Coffin, Frederick | Frederick Coffin | Actor | 1966 | 2 | |
| Chomont, Kenneth | Kenneth Chomont | Actor | 1964 - 1966 | 2 | |
| Cardoso, Celso | Celso Cardoso | Designer | 1958 - 1966 | 2 | |
| Cloffe, - | - Cloffe | Costume Designer, Designer | 1966 | 2 | |
| Clausen, Axel | Axel Clausen | Lighting Designer | 1959 - 1966 | 2 | |
| Claasen, Günter | Günter Claasen | Actor | 1966 - 1971 | 2 | |
| Campbell, Gar | Gar Campbell | Actor, Director | 1966 - 1999 | 2 | |
| Council, Elizabeth | Elizabeth Council | Actor | 1965 | 2 | |
| Cmíralová, Jarmila | Jarmila Cmíralová | Actor | 1960 - 1965 | 2 | |
| Cawley, Barbara | Barbara Cawley | Actor | 1965 | 2 | |
| Callahan, Mary, Therese | Mary Therese Callahan | Actor | 1965 | 2 | |
| Carlin, Chet | Chet Carlin | Actor | 1965 | 2 | |
| Csíky, András | András Csíky | Actor | 1972 - 2004 | 2 | 1 |
| Castaldi, Francesca | Francesca Castaldi | Lighting Designer, Sound Designer | 2002 | 2 | |
| Cruz, Irene | Irene Cruz | Actor | 2002 | 2 | |
| Coseglia, Jared | Jared Coseglia | Sound Designer | 2002 | 2 | |
| Cherniak, Leah | Leah Cherniak | Director | 2002 - 2007 | 2 | |
| Coffin, Gregg | Gregg Coffin | Composer, Sound Designer | 2002 | 2 | |
| Coffey, Julia | Julia Coffey | Actor | 2002 - 2016 | 2 | 1 |
| Condorelli, Noemi | Noemi Condorelli | Actor | 2002 | 2 | |
| Cofalka-Adami, Klaus | Klaus Cofalka-Adami | Actor | 2003 | 2 | 1 |
| Csűrös, Karola | Karola Csűrös | Actor | 1971 - 1975 | 2 | |
| Cotton, Oliver | Oliver Cotton | Actor | 2003 | 2 | 1 |
| Curran, James | James Curran | Actor | 2003 | 2 | |
| Cederhök, Sten-Åke | Sten-Åke Cederhök | Actor | 1989 - 1998 | 2 | 1 |
| Calindri, Gabriele | Gabriele Calindri | Actor | 2001 | 2 | |
| Canjavec, Judit | Judit Canjavec | Actor | 1999 | 2 | |
| Curtin, Peter | Peter Curtin | Actor | 1975 - 1977 | 2 | |
| Conway, Denis | Denis Conway | Actor | 2003 - 2013 | 2 | 1 |
| Christofides, Constantin | Constantin Christofides | Composer | 2003 | 2 | |
| Charles, Nicole | Nicole Charles | Actor | 2003 | 2 | |
| Colchester, Miranda | Miranda Colchester | Actor | 2003 | 2 | |
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