| Silva, Sérgio | Sérgio Silva (Sérgio Silva) | Actor, Sound Designer | 1993 - 2015 | 3 | |
| Silver, Scott | Scott Silver (Scott Silver) | Actor | 1971 | 1 | |
| Silvestri, Daniele | Daniele Silvestri (Daniele Silvestri) | Composer | 1993 - 1994 | 2 | |
| Simic, Vuk | Vuk Simic (Vuk Simic) | Actor | 2002 | 1 | |
| Siminie, Ion | Ion Siminie (Ion Siminie) | Actor | 1992 - 2006 | 6 | |
| Simister, Jack | Jack Simister (Jack Simister) | Actor | 1956 | 1 | |
| Simmat, Jörg | Jörg Simmat (Jörg Simmat) | Actor | 1995 | 1 | |
| Simmons, Chad | Chad Simmons (Chad Simmons) | Actor | 2004 | 1 | |
| Simões, Lucilia | Lucilia Simões (Lucilia Simões) | Actor | 1899 - 1947 | 10 | |
| Simões, Lucinda | Lucinda Simões (Lucinda Simões) | Actor, Director | 1899 - 1903 | 18 | |
| Simon, Maïa | Maïa Simon (Maïa Simon) | Actor | 1986 | 1 | |
| Simon, Sven | Sven Simon (Sven Simon) | Actor | 1992 - 2017 | 3 | |
| Simon, Werner | Werner Simon (Werner Simon) | Actor | 1966 - 1982 | 5 | |
| Simonini, Pierre | Pierre Simonini (Pierre Simonini) | Designer | 1991 | 1 | |
| Simonova, Evgenija | Evgenija Simonova (Evgenija Simonova) | Actor | 1999 | 1 | |
| Simonsen, Cathrine | Cathrine Simonsen (Cathrine Simonsen) | Costume Designer | 1994 | 1 | |
| Sin-chi, Leung | Leung Sin-chi (Leung Sin-chi) | Actor | 2001 | 1 | |
| Sindermann, Werner | Werner Sindermann (Werner Sindermann) | Actor | 1962 - 1973 | 2 | |
| Singelstad, Marit | Marit Singelstad (Marit Singelstad) | Actor | 1990 | 2 | |
| Singer, Peter | Peter Singer (Peter Singer) | Actor | 1994 | 1 | |
| Siničák, Martin | Martin Siničák (Martin Siničák) | Actor | 2004 - 2017 | 6 | |
| Sipari, Lauri | Lauri Sipari (Lauri Sipari) | Adaptation, Translator | 1969 - 2008 | 25 | |
| Sipe, Parker | Parker Sipe (Parker Sipe) | Actor | 1996 | 1 | |
| Sipilä, Hilma | Hilma Sipilä (Hilma Sipilä) | Actor | 1922 | 1 | |
| Sippo, Gints | Gints Sippo (Gints Sippo) | Designer | 2005 - 2008 | 5 | |
| Siren, Markku | Markku Siren (Markku Siren) | Costume Designer, Designer | 1979 - 2006 | 4 | |
| Sirten, Josh | Josh Sirten (Josh Sirten) | Actor | 2004 | 1 | |
| Sisson, Jessica | Jessica Sisson (Jessica Sisson) | Actor | 2008 | 1 | |
| Sitte, Elga | Elga Sitte (Elga Sitte) | Actor | 1973 | 1 | |
| Siuda, Wolfgang | Wolfgang Siuda (Wolfgang Siuda) | Composer | 1991 - 2014 | 16 | |
| Sivertsen, Ragnhild | Ragnhild Sivertsen (Ragnhild Sivertsen) | Actor | 1937 | 1 | |
| Sjoberg, Alf | Alf Sjoberg (Alf Sjoberg) | Actor, Director | 1920 - 2005 | 3 | |
| Sjöberg, Hjalmar | Hjalmar Sjöberg (Hjalmar Sjöberg) | Actor | 1878 - 1886 | 3 | |
| Sjöroos, Gun | Gun Sjöroos (Gun Sjöroos) | Actor | 1999 | 5 | |
| Sjöstrand, Sonja | Sonja Sjöstrand (Sonja Sjöstrand) | Actor | 1952 | 1 | |
| Sjöström, Eva | Eva Sjöström (Eva Sjöström) | Actor | 1903 - 1967 | 2 | |
| Skagestad, Gard | Gard Skagestad (Gard Skagestad) | Actor | 2003 - 2020 | 29 | |
| Skahjem, Randi | Randi Skahjem (Randi Skahjem) | Costume Designer | 1966 - 1967 | 69 | |
| Skála, Petr | Petr Skála (Petr Skála) | Actor | 1965 - 2000 | 3 | |
| Skalski, Stanisław | Stanisław Skalski (Stanisław Skalski) | Director | 1955 | 1 | |
| Skinner, Charles | Charles Skinner (Charles Skinner) | Designer | 1956 | 1 | |
| Skinner, Jason | Jason Skinner (Jason Skinner) | Actor | 2004 | 1 | |
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