| Cassini, A. | A. Cassini | Actor | 1891 - 1924 | 37 | |
| Cassinelli, Claudio | Claudio Cassinelli | Actor | 1968 | 2 | |
| Cassiers, Guy | Guy Cassiers | Dramaturg | 2003 - 2004 | 9 | 1 |
| Cassie, Liz | Liz Cassie | Actor | 2007 | 1 | |
| Cassidy, Kyle | Kyle Cassidy | Adaptation, Director | 2013 - 2021 | 3 | |
| Cassidy, James B. | James B. Cassidy | Director | 1945 | 1 | |
| Cassidy, Jack | Jack Cassidy | Actor | 2010 | 1 | |
| Cassidy, Jack | Jack Cassidy | Actor | 1971 | 1 | |
| Cassidy, Geraldine | Geraldine Cassidy | Actor | 1992 | 1 | |
| Cassidy, Caitlyn | Caitlyn Cassidy | Actor | 2016 | 1 | |
| Cassiani, Sofie | Sofie Cassiani | Actor | 1893 | 1 | |
| Cassian, Jean | Jean Cassian | Actor | 1924 | 1 | |
| Cassel, Chris | Chris Cassel | Actor | 1969 | 1 | |
| Cass, Henry | Henry Cass | Actor, Director, Producer | 1932 - 1936 | 5 | |
| Cass, Deborah | Deborah Cass | Actor | 1956 | 2 | |
| Caspersen, Hugo | Hugo Caspersen | Actor | 1928 | 2 | |
| Casper, Rainer | Rainer Casper | Lighting Designer | 2000 - 2014 | 6 | |
| Casparsson, Otto | Otto Casparsson | Actor | 1919 | 1 | |
| Casparis-Castelberg, Ursula | Ursula Casparis-Castelberg | Choreographer | 1952 | 2 | |
| Caspari, Matthias | Matthias Caspari | Actor | 2003 - 2008 | 3 | 1 |
| Caspari, Leon-Fabian | Leon-Fabian Caspari | Actor | 2016 | 1 | |
| Caspari, Hildegard | Hildegard Caspari | Actor | 1927 | 1 | |
| Caspari, - | - Caspari | Actor | 1896 | 1 | |
| Caspar, Philippe | Philippe Caspar | Adaptation | 1995 | 1 | 1 |
| Caspar, Horst | Horst Caspar | Actor | 1942 | 1 | |
| Casonguay, Nick | Nick Casonguay | Actor | 1997 | 2 | |
| Casona, Alejandro | Alejandro Casona | Adaptation | 1943 | 1 | 1 |
| Cason, Barbara | Barbara Cason | Actor | 1971 | 1 | |
| Caso y Blanco, José de | José de Caso y Blanco | Translator | 1896 | 1 | |
| Casnoff, Philip | Philip Casnoff | Actor | 1990 | 1 | |
| Casler, Jennifer | Jennifer Casler | Assistant Director | 2019 | 1 | |
| Caskey, Ethel | Ethel Caskey | Actor | 1932 | 1 | |
| Casimo, Kaitlyn | Kaitlyn Casimo | Actor | 2010 | 1 | |
| Casimiro, António | António Casimiro | Designer | 1972 - 2007 | 4 | |
| Casimir, Esther | Esther Casimir | Actor | 1984 | 1 | |
| Casimir Roczek, Steffen | Steffen Casimir Roczek | Actor | 2002 | 7 | |
| Casillas, Manuel | Manuel Casillas | Actor | 1956 | 1 | |
| Casillas Sandersen, Isabel Andrea Casillas | Isabel Andrea Casillas Casillas Sandersen | Actor | 2016 | 1 | |
| Casilini, Mr. | Mr. Casilini | Actor | 1898 - 1921 | 11 | |
| Casilini, A. | A. Casilini | Actor | 1892 - 1906 | 11 | |
| Casido, Nicabec | Nicabec Casido | Lighting Designer | 2022 | 1 | |
| Cashel, Meg | Meg Cashel | Actor | 2023 | 1 | |
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