| Clancy, Deirdre | Deirdre Clancy | Costume Designer, Designer | 1970 - 2003 | 13 | 1 |
| Chilvers, Simon | Simon Chilvers | Actor, Director | 1970 - 1982 | 6 | |
| Csendes, László | László Csendes | Actor | 1970 - 1982 | 2 | |
| Claire, Jennifer | Jennifer Claire | Actor | 1970 | 3 | |
| Chwiaokowska, Wanda | Wanda Chwiaokowska | Actor | 1970 | 1 | |
| Castelman, Margaret | Margaret Castelman | Actor | 1970 | 1 | |
| Caruana, Joseph | Joseph Caruana | Actor | 1970 | 1 | |
| Cotter, Christine | Christine Cotter | Actor | 1970 | 1 | |
| Cobb, Hugh | Hugh Cobb | Actor | 1970 | 1 | |
| Carter, Leslie | Leslie Carter | Choreographer | 1970 | 1 | |
| Chávez, Eva, Rocío | Eva Rocío Chávez | Actor | 1970 | 1 | |
| Corrigan, James | James Corrigan | Actor | 1970 | 1 | |
| Chojak-MyŁko, Elżbieta | Elżbieta Chojak-MyŁko | Designer | 1970 | 1 | |
| Cercel, Florina | Florina Cercel | Actor | 1970 | 1 | |
| Cobet Soroceanu, Anatolie | Anatolie Cobet Soroceanu | Actor | 1970 | 1 | |
| Cermak, Marianne | Marianne Cermak | Actor | 1970 | 1 | |
| Coe, Peter | Peter Coe | Director | 1970 | 2 | 1 |
| Castellaneta, Donato | Donato Castellaneta | Actor | 1970 | 1 | |
| Calderini, Emma | Emma Calderini | Costume Designer | 1970 | 1 | |
| Codignola, Luciano | Luciano Codignola | Translator | 1970 | 1 | 1 |
| Crnomarković, Branka | Branka Crnomarković | Actor | 1970 | 1 | |
| Costas, Anna | Anna Costas | Actor | 1970 | 1 | |
| Clapp, Gordon | Gordon Clapp | Actor | 1969 - 2017 | 2 | |
| Cartéus, Rut | Rut Cartéus | Actor | 1969 - 2014 | 4 | |
| Chandler, Derek | Derek Chandler | Actor | 1969 - 2006 | 4 | |
| Clayton, Faith | Faith Clayton | Actor | 1969 - 1988 | 2 | |
| Capilla, Ángela | Ángela Capilla | Actor | 1969 - 1977 | 2 | |
| Cahill, James | James Cahill | Actor | 1969 - 1975 | 2 | 1 |
| Colavecchia, Franco | Franco Colavecchia | Designer | 1969 - 1975 | 2 | |
| Cebrián, Fernando | Fernando Cebrián | Actor | 1969 - 1971 | 2 | |
| Calvo, Manolo | Manolo Calvo | Actor | 1969 - 1971 | 2 | |
| Calvert, Vicky | Vicky Calvert | Actor | 1969 - 1970 | 3 | |
| Chmelař, Miloš | Miloš Chmelař | Actor | 1969 | 1 | |
| Curran, Nell | Nell Curran | Actor | 1969 | 1 | |
| Cseresnyés, Rózsa | Rózsa Cseresnyés | Actor | 1969 | 1 | |
| Coulter, Elisabeth | Elisabeth Coulter | Actor | 1969 | 1 | |
| Cousins, John | John Cousins | Actor | 1969 | 1 | |
| Crutchfield, Robert | Robert Crutchfield | Sound Designer | 1969 | 1 | |
| Czechowski, Tadeusz | Tadeusz Czechowski | Actor | 1969 | 2 | |
| Charalambous, Ingeborg | Ingeborg Charalambous | Choreographer | 1969 | 1 | |
| Collins, Judy | Judy Collins | Actor | 1969 | 1 | 1 |
| Cobb, Bruce | Bruce Cobb | Actor | 1969 | 1 | |
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