| Sofaer, Abraham | Abraham Sofaer | Actor | 1946 | 1 | |
| Söhnel, Eberhard | Eberhard Söhnel | Costume Designer, Designer | 1968 - 1981 | 3 | |
| Söhnel, Monika | Monika Söhnel | Actor | 1975 - 1981 | 3 | |
| Sokołowska, Helena | Helena Sokołowska | Actor | 1954 | 1 | |
| Solbakken, Eva | Eva Solbakken | Actor | 1966 - 1967 | 69 | |
| Solga, Georg | Georg Solga | Actor | 1959 - 1992 | 3 | |
| Solska, Irena | Irena Solska | Actor | 1903 - 1921 | 15 | |
| Somerset, Robert | Robert Somerset | Actor, Director | 1960 - 1961 | 2 | |
| Somerville, Geraldine | Geraldine Somerville | Actor | 1996 | 1 | |
| Sommerfeld, Gernot | Gernot Sommerfeld | Designer | 2002 | 1 | |
| Sommers, Dolly | Dolly Sommers | Actor | 1911 | 2 | |
| Soneka, Emmanuel | Emmanuel Soneka | Actor | 2006 | 1 | |
| Sonne, Petrine | Petrine Sonne | Actor | 1911 - 1936 | 4 | |
| Soramaa, Heikki | Heikki Soramaa | Actor | 1922 | 1 | |
| Soria, Madeleine | Madeleine Soria | Actor | 1928 - 1929 | 2 | |
| Soriola, Eira | Eira Soriola | Actor | 1972 | 1 | |
| Soro, Aarne | Aarne Soro | Actor | 2001 - 2020 | 11 | |
| Sosnowska, Solska | Solska Sosnowska | Actor | 1882 | 1 | |
| Sosnowski, Józef | Józef Sosnowski | Actor, Director | 1896 - 1921 | 21 | |
| Southern, Daniel | Daniel Southern | Actor | 1984 | 1 | |
| Southern, Richard | Richard Southern | Actor, Designer | 1927 - 1930 | 2 | |
| Sovwanski, Diane | Diane Sovwanski | Actor | 1983 | 1 | |
| Spagna, Gabriel | Gabriel Spagna | Actor | 2005 | 4 | |
| Spanhak, Karel | Karel Spanhak | Designer | 1971 - 1972 | 3 | |
| Sparażyński, Stanisław | Stanisław Sparażyński | Actor | 1957 - 1997 | 5 | |
| Sparks, Brenda | Brenda Sparks | Actor | 2000 | 1 | |
| Sparre-Dahl, Inga | Inga Sparre-Dahl | Actor | 1905 - 1924 | 11 | |
| Sparrow, Allison | Allison Sparrow | Actor | 2005 | 1 | |
| Sparrow, Mark | Mark Sparrow | Adaptation | 1996 | 1 | |
| Spasov, Krassimir | Krassimir Spasov | Director | 2001 | 1 | |
| Spaziani, Monique | Monique Spaziani | Actor | 1995 | 1 | |
| Specht, Heinz | Heinz Specht | Choreographer, Dancer, Director | 1956 - 1976 | 5 | |
| Speck, Lindsay | Lindsay Speck | Actor | 2002 | 1 | |
| Sperati, Aagot | Aagot Sperati | Actor | 1929 - 1957 | 13 | |
| Spieker, Ursula | Ursula Spieker | Actor | 1993 | 1 | |
| Spitzer, Quint | Quint Spitzer | Actor | 1991 | 1 | |
| Spokoiny, Olivia | Olivia Spokoiny | Actor | 2003 | 1 | |
| Sprinckhuysen, Van | Van Sprinckhuysen | Actor | 1889 | 1 | |
| Springer, Susanne | Susanne Springer | Dramaturg | 1997 | 1 | |
| Sroi, Samir | Samir Sroi | Actor, Costume Designer, Designer, Director | 2000 | 4 | |
| Sławińska, Zofia | Zofia Sławińska | Actor | 1905 | 1 | |
| Stadler, John | John Stadler | Actor | 1971 | 1 | |
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