| Ceremużyńska, Sabina, | Sabina Ceremużyńska | Actor | 1903 - 1908 | 2 | |
| Carter, Hubert, | Hubert Carter | Actor, Producer | 1903 - 1908 | 2 | |
| Creuzburg, Käthe, | Käthe Creuzburg | Actor | 1903 - 1909 | 4 | |
| Conradi, -, | - Conradi | Composer | 1903 - 1909 | 3 | |
| Carvill, Henry J., | Henry J. Carvill (Henry J. Carvill) | Actor | 1903 - 1925 | 5 | |
| Craig, Edward Gordon, | Edward Gordon Craig | Costume Designer, Designer, Director, Lighting Designer | 1903 - 1926 | 21 | |
| Czaki, Henryk, | Henryk Czaki | Actor | 1903 - 1928 | 11 | |
| Christiansen, Helene, | Helene Christiansen | Actor | 1904 | 1 | |
| Clark, Grace Gayler, | Grace Gayler Clark | Actor | 1904 | 1 | |
| Chandler, Alice, | Alice Chandler | Actor | 1904 | 1 | |
| Cristana, I., | I. Cristana | Actor | 1904 | 3 | |
| Colliander, Erland, | Erland Colliander | Actor | 1904 | 1 | |
| Chrysafis, Georgios, | Georgios Chrysafis | Actor | 1904 | 1 | |
| Czaplińska, Janina (?), | Janina (?) Czaplińska | Actor | 1904 | 1 | |
| Cluxton, Walter | Walter Cluxton | Actor | 1904 | 1 | |
| Chéron, Louis, | Louis Chéron | Actor | 1904 - 1907 | 5 | |
| Clodius, Willy, | Willy Clodius | Actor | 1905 | 2 | |
| Caßmann, Marie, | Marie Caßmann | Actor | 1905 | 2 | |
| Clemens, Elvira, | Elvira Clemens | Actor | 1905 | 1 | |
| Claudius, Matthias, | Matthias Claudius | Actor | 1905 | 1 | |
| Craig, Owen, | Owen Craig | Actor | 1905 | 1 | |
| Curry, Ada, | Ada Curry | Actor | 1905 | 1 | |
| Campbell, Maurice, | Maurice Campbell | Director | 1905 | 3 | |
| Campbell, Emerin, | Emerin Campbell | Actor | 1905 | 1 | |
| Chamier, Francis, | Francis Chamier | Actor | 1905 | 1 | |
| Christie, Mr. | Mr. Christie | Actor | 1905 | 1 | |
| Collot, -, | - Collot | Actor | 1905 - 1906 | 2 | |
| Carlsen, M. Rust, | M. Rust Carlsen | Actor | 1905 - 1906 | 2 | |
| Casson, Lewis, | Lewis Casson | Actor, Producer | 1905 - 1952 | 3 | |
| Claudia, -, | - Claudia | Actor | 1906 | 1 | |
| Celiat, -, | - Celiat | Actor | 1906 | 1 | |
| Coerdes, Ewijk, | Ewijk Coerdes | Actor | 1906 | 1 | |
| Carstens, Carl, | Carl Carstens | Actor | 1906 | 2 | |
| Charles, Mizi, | Mizi Charles | Actor | 1906 | 1 | |
| Callenbach, Adolf, | Adolf Callenbach | Actor | 1906 | 1 | |
| Crawford, Alice, | Alice Crawford | Actor | 1906 | 1 | |
| Carlton, A. C., | A. C. Carlton (A. C. Carlton) | Actor | 1906 | 1 | |
| Claesson, Frk., | Frk. Claesson | Actor | 1906 | 1 | |
| Coelingh-Vorderman, -, | - Coelingh-Vorderman | Actor | 1906 | 1 | |
| Crews, Laura Hope, | Laura Hope Crews | Actor | 1906 | 1 | |
| Capellani, -, | - Capellani | Actor | 1906 - 1907 | 2 | |
| Carenius, Molly, | Molly Carenius | Actor | 1906 - 1907 | 23 | |
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