| Sherry, E. P., | E. P. Sherry (E. P. Sherry) | Actor | 1911 | 1 | |
| Sasamoto, Mitsuhiro, | Mitsuhiro Sasamoto | Actor | 1912 | 1 | |
| Stenzel, Mr., | Mr. Stenzel | Actor | 1912 | 1 | |
| Scherrer, Frk., | Frk. Scherrer | Actor | 1912 | 1 | |
| Simsone, Annija, | Annija Simsone | Actor | 1912 | 2 | |
| Schwanneke, Viktor, | Viktor Schwanneke | Actor | 1912 - 1916 | 2 | |
| Sarantidis, Georgios, | Georgios Sarantidis | Actor | 1912 - 1930 | 5 | |
| Sarrigiannis, Angelos, | Angelos Sarrigiannis | Actor | 1912 | 2 | |
| Stratigopoulos, Ioannis, | Ioannis Stratigopoulos | Actor | 1912 | 3 | |
| Sosnokowski, Józef gw., | Józef gw. Sosnokowski (Józef gw. Sosnokowski) | Actor, Director | 1912 - 1917 | 2 | |
| Slangus, Axel, | Axel Slangus | Actor | 1912 - 1961 | 7 | |
| Sandborg, Olof, | Olof Sandborg | Actor | 1912 - 1958 | 10 | |
| Sjögren, Anna, | Anna Sjögren | Actor | 1912 - 1913 | 3 | |
| Symra, Agnes, | Agnes Symra | Actor | 1913 | 4 | |
| Sibelius, Jean, | Jean Sibelius | Composer | 1913 - 2018 | 17 | |
| Svendsen, Morten L., | Morten L. Svendsen (Morten L. Svendsen) | Musical Director | 1913 - 1921 | 3 | |
| Sveilis, Miķelis, | Miķelis Sveilis | Actor | 1913 - 1915 | 3 | |
| Spångberg, Agnes, | Agnes Spångberg | Actor | 1913 | 1 | |
| Sawada, Shojiro, | Shojiro Sawada | Actor | 1914 | 1 | |
| Sugiyama, Ayako, | Ayako Sugiyama | Actor | 1914 | 2 | |
| Skjønberg, Eugen, | Eugen Skjønberg | Actor | 1914 - 1952 | 18 | |
| Smiļģis, Eduards, | Eduards Smiļģis | Actor, Adaptation, Director | 1914 - 1964 | 9 | |
| Shirakawa, Otsuma, | Otsuma Shirakawa | Actor | 1914 | 1 | |
| Soden, Anna, | Anna Soden | Actor | 1914 | 1 | |
| Seabury, Edith, | Edith Seabury | Actor | 1915 | 2 | |
| Stavenow, Athenaïs, | Athenaïs Stavenow | Actor | 1915 | 1 | |
| Stefanoffová, Ritta, | Ritta Stefanoffová | Actor | 1915 | 1 | |
| Sommer, Alf, | Alf Sommer | Actor | 1915 - 1949 | 9 | |
| Strong, Vivian, | Vivian Strong | Actor | 1916 | 1 | |
| Schubert, Grete, | Grete Schubert | Actor | 1916 - 1917 | 2 | |
| Sperlich, Leo, | Leo Sperlich | Actor | 1916 | 1 | |
| Sawicki, Józef, | Józef Sawicki | Actor | 1915 - 1918 | 30 | |
| Sydney, Basil, | Basil Sydney | Actor | 1917 - 1924 | 3 | |
| Starck, -, | - Starck | Actor | 1917 | 1 | |
| Sebestyén, Károly, | Károly Sebestyén | Translator | 1917 - 1931 | 5 | |
| Stack, William, | William Stack | Actor | 1917 | 1 | |
| Sunne, August, | August Sunne | Actor, Director | 1917 | 2 | |
| Scatchard, Henry, | Henry Scatchard | Actor | 1917 | 2 | |
| Simpson, Fraser, | Fraser Simpson | Composer | 1917 | 1 | |
| Szpakiewicz, Mieczysław, | Mieczysław Szpakiewicz | Actor, Director | 1915 - 1923 | 4 | |
| Strachocki, Janusz, | Janusz Strachocki | Actor | 1917 | 1 | |
| Samborski, Bogusław, | Bogusław Samborski | Actor | 1917 - 1918 | 14 | |
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