| Sissener, Einar | Einar Sissener | Actor | 1950 - 1965 | 33 | 1 |
| Sisson, Jessica | Jessica Sisson | Actor | 2008 | 1 | |
| Sissons, Narelle | Narelle Sissons | Designer | 2003 - 2011 | 35 | 1 |
| Sissons, Neil | Neil Sissons | Director, Lighting Designer, Translator | 1993 - 1999 | 122 | |
| Sisterson, Dorothy | Dorothy Sisterson | Actor | 1960 | 1 | |
| Sisti, Rebecca | Rebecca Sisti | Actor | 2024 | 1 | |
| Sisti, Virginia | Virginia Sisti | Actor | 2024 | 1 | |
| Sîtar, Jelena | Jelena Sîtar | Dramaturg | 2011 | 8 | |
| Sitaras, Stephan | Stephan Sitaras | Actor | 2017 | 1 | |
| Sitaridou, Anna | Anna Sitaridou | Actor | 1985 | 1 | |
| Sitek, Agnieszka | Agnieszka Sitek | Actor | 1999 | 1 | |
| Sitje, Haakon | Haakon Sitje | Mask Maker | 2006 | 50 | |
| Sitko, Michal | Michal Sitko | Actor | 2011 | 1 | |
| Sitler, David | David Sitler | Actor | 2019 | 1 | |
| Sitomer, David | David Sitomer | Actor | 1967 | 1 | |
| Sitova, Tatjana | Tatjana Sitova | Actor | 1998 | 1 | 1 |
| Sitrling, Georgie | Georgie Sitrling | Actor | 1984 | 1 | |
| Sitte, Elga | Elga Sitte | Actor | 1973 | 1 | |
| Sittler, Walter | Walter Sittler | Actor | 1985 | 3 | |
| Sitton, Suzanne | Suzanne Sitton | Actor | 1963 | 1 | |
| Sittová, Romana | Romana Sittová | Actor | 1995 | 1 | |
| Siuda, Wolfgang | Wolfgang Siuda | Composer | 1991 - 2014 | 16 | 1 |
| Sivadier, Jean-François | Jean-François Sivadier | Designer, Director | 2019 - 2020 | 32 | |
| Sivaev, Aleksander | Aleksander Sivaev | Lighting Designer | 2019 | 1 | |
| Sivall, Olle | Olle Sivall | Actor | 1966 | 1 | |
| Sivaraman, Deepan | Deepan Sivaraman | Designer, Director, Dramaturg | 2010 | 3 | |
| Sivertsen, Finn | Finn Sivertsen | Actor | 2003 | 1 | |
| Sivertsen, Ragnhild | Ragnhild Sivertsen | Actor | 1937 | 1 | |
| Sivertsen, Sanna Teig | Sanna Teig Sivertsen | Actor | 2012 | 1 | |
| Sivertsen, Siri May | Siri May Sivertsen | Actor | 1995 - 2000 | 7 | |
| Sives, Jamie | Jamie Sives | Actor | 2005 | 2 | 1 |
| Sivieri, Adriana | Adriana Sivieri | Actor | 1940 | 2 | |
| Sivó, Mária | Mária Sivó | Actor | 1944 | 1 | |
| Siwal, Devesh | Devesh Siwal | Actor | 2016 - 2024 | 16 | |
| Siwek, Jake | Jake Siwek | Actor | 2020 | 1 | |
| Six, Lidy | Lidy Six | Director | 1992 | 1 | |
| Sixt, Linda | Linda Sixt | Actor | 2006 | 1 | |
| Sixt, Paul | Paul Sixt | Conductor | 1961 | 1 | |
| Sixty, Antonio | Antonio Sixty | Director | 2006 | 1 | |
| Sizova, Valeria | Valeria Sizova | Actor | 2005 | 1 | |
| Sjeldrup-Jensen, - | - Sjeldrup-Jensen | Actor | 1928 | 1 | |
| Sjem, Asta | Asta Sjem | Actor | 1928 | 1 | |
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