| Comiskey, John | John Comiskey | Designer, Lighting Designer | 2011 | 2 | 1 |
| Collin, Gunnar | Gunnar Collin | Actor | 1955 - 1960 | 2 | |
| Claxton, Elaine | Elaine Claxton | Actor | 2011 | 2 | |
| Chivers, Natasha | Natasha Chivers | Lighting Designer | 2011 - 2021 | 2 | |
| Cazac, Durin | Durin Cazac | Actor, Translator | 2012 | 2 | |
| Chakraborty, Bidyutjit | Bidyutjit Chakraborty | Actor | 2012 | 2 | |
| Cozma, Ion | Ion Cozma | Actor | 1973 - 1976 | 2 | |
| Chemers, Michael | Michael Chemers | Actor, Adaptation | 2013 | 2 | |
| Carson, Ben | Ben Carson | Actor | 2013 | 2 | |
| Carter, Melissa | Melissa Carter | Actor | 2011 - 2012 | 2 | |
| Cohen, Alexandros | Alexandros Cohen | Director, Translator | 2014 | 2 | |
| Chrysanthopoulos, Aristidis | Aristidis Chrysanthopoulos | Costume Designer, Designer | 2014 | 2 | |
| Conradt, Kurt | Kurt Conradt | Actor | 1962 - 1975 | 2 | |
| Czompa, Francisc | Francisc Czompa | Musical Director | 1974 - 1979 | 2 | |
| Compton, Fay | Fay Compton | Actor | 1948 - 1959 | 2 | 1 |
| Clayton, James | James Clayton | Actor | 1958 | 2 | |
| Colby, James | James Colby | Actor | 1949 - 1958 | 2 | 1 |
| Chaudoir, Hubert | Hubert Chaudoir | Actor | 1958 | 2 | |
| Cowell, Brendan | Brendan Cowell | Actor | 2013 | 2 | |
| Cella, Ettore | Ettore Cella | Director | 1957 | 2 | |
| Copacea, Iulian | Iulian Copacea | Actor | 1967 - 1982 | 2 | |
| Cveticanin, Mihajlo | Mihajlo Cveticanin | Actor | 1956 | 2 | |
| Constantinescu, Titi | Titi Constantinescu | Lighting Designer | 1955 - 1973 | 2 | |
| Carozzi, Dona | Dona Carozzi | Actor | 1932 - 1955 | 2 | |
| Ceagoreanu, Dorin | Dorin Ceagoreanu | Actor | 2005 - 2016 | 2 | |
| Cass, Deborah | Deborah Cass | Actor | 1956 | 2 | |
| Corciova, Radu | Radu Corciova | Costume Designer, Designer | 1974 | 2 | |
| Chirilă, Călin | Călin Chirilă | Actor | 1999 - 2001 | 2 | |
| Candelier, François | François Candelier | Actor, Director | 1955 | 2 | |
| Carroll, Robert, V. | Robert V. Carroll | Actor, Director | 1942 - 1955 | 2 | |
| Chatzimarkos, Dimitris | Dimitris Chatzimarkos | Actor | 1949 - 1953 | 2 | |
| Chernel, Lona | Lona Chernel | Actor | 1952 | 2 | |
| Carl, Joseph | Joseph Carl | Designer | 1943 - 1951 | 2 | |
| Capello, Joseph | Joseph Capello | Actor | 1950 | 2 | |
| Calow, Cay | Cay Calow | Actor | 1954 | 2 | |
| Cornelius, Undine | Undine Cornelius | Actor | 2000 | 2 | |
| Cronström, Rut | Rut Cronström | Actor | 1953 | 2 | |
| Cannon, J., D. | J. D. Cannon | Actor | 1960 | 2 | |
| Claar, Hans | Hans Claar | Actor | 1910 - 1911 | 2 | |
| Child, Matt | Matt Child | Actor | 1963 | 2 | |
| Christiansen, Susan | Susan Christiansen | Actor | 1963 | 2 | |
| Coburn, Brian | Brian Coburn | Actor | 1962 | 2 | |
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