| Siklóssy, Pál | Pál Siklóssy | Director | 1935 | 1 | |
| Sikora, Annie | Annie Sikora | Actor | 1904 | 1 | |
| Sikora, Bernd | Bernd Sikora | Composer, Musician | 2002 | 2 | |
| Sikora, Cornelia | Cornelia Sikora | Actor | 1981 | 1 | |
| Sikora, Nastya | Nastya Sikora | Actor | 2024 | 1 | |
| Sikora, Patrycja | Patrycja Sikora | Actor | 2016 | 1 | |
| Sikorová, Martina | Martina Sikorová | Actor | 2008 | 2 | |
| Silađi Revid, Eleonora | Eleonora Silađi Revid | Actor | 1992 | 1 | |
| Silaeva, Yuliya | Yuliya Silaeva (Юлия Силаева) | Actor | 2013 | 1 | |
| Silaghi, Adrian | Adrian Silaghi | Actor | 2005 | 1 | |
| Silaghi, Summer Joy | Summer Joy Silaghi | Actor | 2005 | 1 | |
| Silajdžić, Jovan | Jovan Silajdžić | Actor | 1951 | 1 | |
| Silanen, Hilkka | Hilkka Silanen | Actor, Director | 1952 - 1972 | 3 | |
| Silber, Paul | Paul Silber | Actor | 1962 | 1 | |
| Silberbauer, Gerd | Gerd Silberbauer | Actor | 1984 | 2 | |
| Silberg, Nicolas | Nicolas Silberg | Actor | 1993 | 1 | 1 |
| Silberman, Sarah | Sarah Silberman | Costume Designer | 2023 | 7 | |
| Silbernagl, Roland | Roland Silbernagl | Actor | 2001 | 1 | |
| Silberspitz, Cecília | Cecília Silberspitz | Actor | 1966 | 1 | |
| Silberstein, Frank | Frank Silberstein | Designer | 1984 | 1 | |
| Silberstein, Robert E. | Robert E. Silberstein | Actor | 1966 | 1 | |
| Sileanu, Ştefan | Ştefan Sileanu | Actor | 1973 | 1 | |
| Silén, Sami | Sami Silén | Sound Designer | 2013 | 1 | |
| Silenieks, Visvaldis | Visvaldis Silenieks | Actor | 1928 - 1935 | 2 | |
| Silfverberg, Nina | Nina Silfverberg | Costume Designer, Designer | 2014 | 2 | |
| Silfverblad, Sigrid | Sigrid Silfverblad | Actor | 1887 | 1 | |
| Silfverhjelm, Lillemor | Lillemor Silfverhjelm | Actor | 2003 | 1 | |
| Silfverskiöld, Nicolas | Nicolas Silfverskiöld | Actor | 2007 | 1 | |
| Siliņa, Inga | Inga Siliņa | Actor | 2010 | 1 | 2 |
| Silins, Aivars | Aivars Silins | Actor | 1975 | 1 | |
| Siljander, Ferdinand | Ferdinand Siljander | Actor | 1885 - 1890 | 7 | |
| Siljander, Maija | Maija Siljander | Actor | 2008 | 1 | |
| Siljanoska, Teodora | Teodora Siljanoska (Теодора Силјаноска) | Director, Dramaturg | 2022 | 2 | |
| Siljanova, Petja | Petja Siljanova | Actor | 1981 | 1 | |
| Siljo, J. | J. Siljo | Translator | 1928 | 1 | |
| Silk, Anthony | Anthony Silk | Actor | 2017 | 1 | |
| Silkeberg, Annika | Annika Silkeberg | Director, Dramaturg, Playwright | 2021 - 2022 | 4 | |
| Silkeberg, Tom | Tom Silkeberg | Dramaturg, Translator | 2017 | 2 | |
| Silkowska, Ewelina | Ewelina Silkowska | Actor | 2018 | 1 | |
| Silla, Fred | Fred Silla | Actor | 1981 | 1 | |
| Siller, Annemarie | Annemarie Siller | Costume Designer | 1987 | 1 | |
| Sillett, Alice | Alice Sillett | Director | 2018 | 20 | |
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