| Claro, Rodrigo | Rodrigo Claro | Costume Designer | 2003 | 1 | |
| Clarkson, Tom | Tom Clarkson | Actor | 1935 - 1936 | 2 | |
| Clarkson, Phillip | Phillip Clarkson | Costume Designer, Designer | 1989 - 1996 | 2 | |
| Clarkson, Patricia | Patricia Clarkson | Actor | 1984 | 1 | |
| Clarkson, James | James Clarkson | Actor | 1999 | 30 | |
| Clarkson, Helena | Helena Clarkson | Actor | 2013 | 1 | |
| Clarke, Sue | Sue Clarke | Director | 2007 | 1 | |
| Clarke, Stephen | Stephen Clarke | Actor | 1972 | 1 | |
| Clarke, Rory | Rory Clarke | Actor | 2006 | 1 | |
| Clarke, Redfield | Redfield Clarke | Actor | 1923 - 1924 | 2 | |
| Clarke, Pauline | Pauline Clarke | Actor | 1943 | 1 | |
| Clarke, Nigel | Nigel Clarke | Actor | 1931 - 1952 | 3 | |
| Clarke, Melissa | Melissa Clarke | Actor | 1966 | 1 | |
| Clarke, Mary | Mary Clarke | Actor | 1926 - 1932 | 2 | |
| Clarke, Martha | Martha Clarke | Choreographer | 2003 - 2011 | 34 | |
| Clarke, Leona | Leona Clarke | Actor | 2020 | 1 | |
| Clarke, Laurance | Laurance Clarke | Producer | 1933 | 1 | |
| Clarke, Laura | Laura Clarke | Actor | 1999 | 2 | |
| Clarke, Justine | Justine Clarke | Actor | 2004 - 2006 | 2 | 1 |
| Clarke, John | John Clarke | Designer | 1991 | 1 | |
| Clarke, Jocelyn | Jocelyn Clarke | Dramaturg | 2003 - 2011 | 34 | |
| Clarke, Jacqueline | Jacqueline Clarke | Actor | 2019 | 2 | |
| Clarke, Gregory | Gregory Clarke | Sound Designer | 2008 | 2 | |
| Clarke, George | George Clarke | Actor | 1957 | 1 | |
| Clarke, Edward | Edward Clarke | Actor | 2002 | 1 | |
| Clarke, Edward | Edward Clarke | Actor | 1931 | 1 | |
| Clarke, Ed, Cooper | Ed Cooper Clarke | Actor | 2009 | 1 | |
| Clarke, Dorothy | Dorothy Clarke | Actor | 2006 | 1 | |
| Clarke, David | David Clarke | Director, Lighting Designer | 1976 - 2000 | 2 | |
| Clarke, David | David Clarke | Actor | 2015 | 1 | |
| Clarke, Cecil | Cecil Clarke | Actor | 1939 | 1 | |
| Clarke, Carol D. | Carol D. Clarke | Actor | 1984 | 1 | |
| Clarke, Burke | Burke Clarke | Actor | 1908 | 1 | 1 |
| Clarke, Audrey Freyja | Audrey Freyja Clarke | Actor | 1998 | 1 | |
| Clarke-Smith, D.A. | D. A. Clarke-Smith | Actor | 1936 | 4 | 1 |
| Clark, Wallis | Wallis Clark | Actor | 1919 | 1 | |
| Clark, W.D. | W. D. Clark (W.D. Clark) | Actor | 1909 | 2 | |
| Clark, Susan | Susan Clark | Actor | 1978 | 1 | |
| Clark, Stephanie | Stephanie Clark | Actor | 1969 | 1 | |
| Clark, Sarah | Sarah Clark | Actor | 2005 - 2006 | 3 | |
| Clark, Rodney | Rodney Clark | Actor | 1997 - 2002 | 2 | |
| Clark, Petula | Petula Clark | Actor | 2001 - 2004 | 8 | |
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