| Singer, Peter | Peter Singer | Actor | 1994 | 1 | 1 |
| Siničák, Martin | Martin Siničák | Actor | 2004 - 2017 | 6 | 1 |
| Sipari, Lauri | Lauri Sipari | Adaptation, Translator | 1969 - 2008 | 25 | 1 |
| Siuda, Wolfgang | Wolfgang Siuda | Composer | 1991 - 2014 | 16 | 1 |
| Sjöberg, Hjalmar | Hjalmar Sjöberg | Actor | 1878 - 1886 | 3 | 1 |
| Sjöroos, Gun | Gun Sjöroos | Actor | 1999 | 5 | 1 |
| Skagestad, Gard | Gard Skagestad | Actor | 2003 - 2020 | 29 | 1 |
| Skahjem, Randi | Randi Skahjem | Costume Designer | 1966 - 1967 | 69 | 1 |
| Sklenčka, Ota | Ota Sklenčka | Actor | 1954 - 2000 | 5 | 1 |
| Skouboe, Else | Else Skouboe | Actor | 1933 - 1937 | 4 | 1 |
| Skouen, Synne | Synne Skouen | Translator | 1973 - 2004 | 43 | 1 |
| Slezak, Walter | Walter Slezak | Actor | 1937 - 1959 | 2 | 1 |
| Smidje, Ulla | Ulla Smidje | Actor | 1947 - 1958 | 4 | 1 |
| Smith, Dana | Dana Smith | Actor | 1988 | 1 | 1 |
| Smith, Sherry | Sherry Smith | Actor | 1989 - 2004 | 4 | 1 |
| Snagowski, Xenia | Xenia Snagowski | Actor | 2006 - 2010 | 2 | 1 |
| Soeiro, Manuela | Manuela Soeiro | Actor, Director | 2006 - 2017 | 4 | 1 |
| Solgård, Kalle | Kalle Solgård | Director | 1987 | 1 | 1 |
| Sommer, Astrid | Astrid Sommer | Actor | 1950 - 2006 | 114 | 1 |
| Sommerro, Henning | Henning Sommerro | Composer | 1984 - 2006 | 143 | 1 |
| Sonck, Pekka | Pekka Sonck | Actor | 1999 | 5 | 1 |
| Southgate, Alan | Alan Southgate | Actor | 2005 | 1 | 1 |
| Stabell, Anne | Anne Stabell | Costume Designer, Designer | 1985 - 2003 | 27 | 1 |
| Stägemann, Eugen | Eugen Stägemann | Actor, Director | 1878 - 1893 | 8 | 1 |
| Stahl, Gerd | Gerd Stahl | Adaptation, Dramaturg | 1990 - 2013 | 32 | 1 |
| Stanĕk, Jaromír | Jaromír Stanĕk | Director | 1958 - 1998 | 2 | 1 |
| Starke, Anthony | Anthony Starke | Actor | 2005 | 1 | 1 |
| Stavenow, Arthur | Arthur Stavenow | Actor | 1895 - 1901 | 28 | 1 |
| Stein, Douglas | Douglas Stein | Designer | 1981 - 1995 | 10 | 1 |
| Stenbeck, Monica | Monica Stenbeck | Actor | 1983 - 1984 | 3 | 1 |
| Stengel, Kerstin | Kerstin Stengel | Actor | 2004 | 1 | 1 |
| Stengele, Bernhard | Bernhard Stengele | Actor, Director | 1996 - 2007 | 13 | 1 |
| Stenka, Danuta | Danuta Stenka | Actor | 1994 - 2006 | 6 | 1 |
| Stenlund, Matts | Matts Stenlund | Actor | 1999 | 5 | 1 |
| Sterling, Arthur | Arthur Sterling | Actor | 1988 | 1 | 1 |
| Stettler, Steve | Steve Stettler | Director | 1988 | 1 | 1 |
| Stewart, Brian | Brian Stewart | Actor | 2005 | 1 | 1 |
| Stodd, Katie | Katie Stodd | Actor | 2002 | 1 | 1 |
| Stokes, John | John Stokes | Designer, Director | 1977 - 1987 | 3 | 1 |
| Stoldt, Marianne | Marianne Stoldt | Actor | 1923 - 1934 | 4 | 1 |
| Stolzenburg, Enrico | Enrico Stolzenburg | Actor, Assistant Director, Director | 2002 - 2009 | 46 | 1 |
| Storck, Gisela | Gisela Storck | Actor | 1998 - 2004 | 2 | 1 |
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