| Colonna, Mariangela | Mariangela Colonna | Actor | 1988 - 1989 | 7 | |
| Clendinning, David | David Clendinning | Actor | 1975 - 1988 | 2 | |
| Cosentino, Paola | Paola Cosentino | Actor | 1988 | 1 | |
| Christen, Robert | Robert Christen | Lighting Designer | 1980 - 1991 | 3 | |
| Creighton, Andrew | Andrew Creighton | Actor | 1991 | 1 | |
| Camacho, Felipe | Felipe Camacho | Actor, Musician | 1991 | 2 | |
| Cavanagh, Sean | Sean Cavanagh | Designer | 1991 | 6 | |
| Carr, Jack | Jack Carr | Actor | 1991 | 6 | |
| Claus, Gerold | Gerold Claus | Actor | 1990 | 1 | |
| Core, Thomas H. | Thomas H. Core | Actor | 1990 | 1 | |
| Cavell, Linda | Linda Cavell | Actor | 1990 | 1 | |
| Chetelat, Brian | Brian Chetelat | Actor | 1990 | 1 | |
| Csencsits, Franz J. | Franz J. Csencsits | Actor | 1990 - 2013 | 6 | |
| Clohessy, Frances | Frances Clohessy | Actor | 1991 | 1 | |
| Cuka, Frances | Frances Cuka | Actor | 1990 - 2006 | 2 | |
| Carr, Camilla | Camilla Carr | Actor | 1990 | 1 | |
| Carr, Mary, Dixie | Mary Dixie Carr | Actor | 1990 | 1 | |
| Campbell, Ron | Ron Campbell | Actor | 1990 | 2 | |
| Czakó, Jenő | Jenő Czakó | Actor | 1991 | 1 | |
| Campbell, Derek | Derek Campbell | Actor, Director | 1991 - 2009 | 2 | |
| Cohen, Joyce | Joyce Cohen | Actor | 1991 | 1 | |
| Claspill, Holly | Holly Claspill | Actor | 1991 | 2 | |
| Carr, Mimi | Mimi Carr | Actor | 1990 - 2000 | 2 | |
| Carson, Brandy | Brandy Carson | Actor | 1990 | 1 | |
| Cochren, Daniel | Daniel Cochren | Actor | 1990 | 1 | |
| Cavanaugh, Mary Beth | Mary Beth Cavanaugh | Choreographer | 1990 | 1 | |
| Csutoros, Hope | Hope Csutoros | Actor, Musician | 1990 | 3 | |
| Conroy, Jane | Jane Conroy | Actor | 1990 | 5 | |
| Coenen-Ulrich, Sigrid | Sigrid Coenen-Ulrich | Costume Designer | 1965 - 1991 | 2 | |
| Chvojková-Pallasová, Dagmar | Dagmar Chvojková-Pallasová | Translator | 1955 - 1959 | 3 | |
| Crona, Görel | Görel Crona | Actor | 1991 - 1993 | 10 | |
| Carmem, Myriam | Myriam Carmem | Actor | 1952 - 1956 | 2 | |
| Carvalho, Hélio | Hélio Carvalho | Actor | 1956 - 1966 | 3 | |
| Croiset, Max | Max Croiset | Actor | 1956 | 1 | |
| Chila, Lorenzo | Lorenzo Chila | Actor, Costume Designer | 1956 | 2 | |
| Costello, Bridget | Bridget Costello | Actor | 1992 | 1 | |
| Cooper, Harry | Harry Cooper | Actor | 1992 | 1 | |
| Clausnitzer, Wolfgang | Wolfgang Clausnitzer | Costume Designer, Designer | 1992 - 1998 | 3 | |
| Carp, Peter | Peter Carp | Director | 1992 | 1 | |
| Clementi, Hemma | Hemma Clementi | Actor | 1992 | 2 | |
| Caron, Thomas | Thomas Caron | Actor | 1992 - 2009 | 2 | |
| Courbois, Kitty | Kitty Courbois | Actor | 1992 | 1 | |
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