| Scurtea, Ciprian | Ciprian Scurtea | Actor | 2018 | 2 | |
| Scutariu, Irina | Irina Scutariu | Actor | 2018 | 1 | |
| Scutt, Ed | Ed Scutt | Adaptation | 2008 | 1 | |
| Scutt, Tom | Tom Scutt | Designer | 2017 | 1 | |
| Scwhaller, Anne | Anne Scwhaller | Director | 2023 | 1 | |
| Scwheid, Mark | Mark Scwheid | Actor | 1926 | 1 | |
| Sdougkos, Michalis | Michalis Sdougkos | Costume Designer, Designer | 2004 - 2005 | 6 | |
| Se-min, Oh | Oh Se-min (오세민) | Actor | 2024 | 1 | |
| Sé, Louis | Louis Sé | Actor | 2015 - 2017 | 5 | |
| Seable, Stephen | Stephen Seable | Actor | 2004 | 1 | |
| Seabra, Rui | Rui Seabra | Lighting Designer | 2007 | 1 | |
| Seabrooke, Elliot | Elliot Seabrooke | Actor | 1926 | 1 | |
| Seabury, Edith | Edith Seabury | Actor | 1915 | 2 | |
| Seager, Laura | Laura Seager | Actor | 1966 | 1 | |
| Seagren, Carol | Carol Seagren | Actor | 1966 | 1 | |
| Seal, Josh | Josh Seal | Actor | 2022 | 1 | |
| Seal, Christopher | Christopher Seal | Actor | 1973 | 1 | |
| Seal, George | George Seal | Lighting Designer | 2021 | 1 | |
| Seal, Karen | Karen Seal | Actor | 1965 | 1 | |
| Seale, Douglas | Douglas Seale | Director | 1951 - 1971 | 2 | |
| Sealy, Joanne | Joanne Sealy | Actor | 2009 | 2 | |
| Seaman, David | David Seaman | Actor | 1982 | 1 | |
| Seamon, Diane | Diane Seamon | Actor | 1923 | 2 | |
| Seamon, Edward | Edward Seamon | Actor | 1983 - 1992 | 3 | 1 |
| Searle, Paula | Paula Searle | Actor | 2007 | 1 | |
| Searle, Richard | Richard Searle | Actor | 1896 | 1 | |
| Searle, Townley | Townley Searle | Actor | 1911 | 5 | |
| Sears, Heather | Heather Sears | Actor | 1975 - 1980 | 3 | |
| Sears, Leslie | Leslie Sears | Stage Manager | 2024 | 1 | |
| Sears, Miriam | Miriam Sears | Actor | 1929 | 3 | |
| Sears, Nancy | Nancy Sears | Actor | 1959 | 1 | |
| Sears, Robert | Robert Sears | Actor | 1956 | 1 | |
| Sears, Teresa | Teresa Sears | Costume Designer | 2007 | 1 | |
| Seary, Bob | Bob Seary | | | | 5 |
| Seatle, Dixie | Dixie Seatle | Actor | 1978 - 2003 | 3 | |
| Seaton, A. Morrice | A. Morrice Seaton | Actor | 1903 | 1 | |
| Seaton, Michelle | Michelle Seaton | Actor | 2001 | 1 | |
| Seay, James | James Seay | Actor | 1936 | 2 | |
| Seay, Marlaina | Marlaina Seay | Designer, Lighting Designer | 2005 | 2 | |
| Seay, R., W. | R. W. Seay | Actor | 1925 | 1 | |
| Sebald, Aljoscha | Aljoscha Sebald | Actor | 1951 - 1967 | 4 | |
| Sebald, Herbert | Herbert Sebald | Actor | 1922 - 1961 | 4 | |
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