| Sabatini, E. | E. Sabatini (E. Sabatini) | Actor | 1904 | 3 | |
| Stenström, Edvin | Edvin Stenström (Edvin Stenström) | Actor | 1904 - 1924 | 6 | |
| Sachsenburg, Fritz | Fritz Sachsenburg (Fritz Sachsenburg) | Actor | 1904 - 1905 | 9 | |
| Stevens, Emily | Emily Stevens (Emily Stevens) | Actor | 1904 - 1926 | 2 | |
| Schoeffel, John B. | John B. Schoeffel (John B. Schoeffel) | Producer | 1904 | 1 | |
| Szymańska, Helena | Helena Szymańska (Helena Szymańska) | Actor | 1904 | 1 | |
| Slocum, Harold W. | Harold W. Slocum (Harold W. Slocum) | Actor | 1905 | 1 | |
| Sequi, Giuseppe | Giuseppe Sequi (Giuseppe Sequi) | Actor | 1905 | 1 | |
| Sequi, Mrs. | Mrs. Sequi (Mrs. Sequi) | Actor | 1905 | 1 | |
| Stern, Fritz | Fritz Stern | Actor | 1905 | 2 | |
| Svonareva, Sofija | Sofija Svonareva (Sofija Svonareva) | Actor | 1905 | 1 | |
| Siennicki, Jan | Jan Siennicki (Jan Siennicki) | Actor | 1905 | 1 | |
| Stefański, Stefan | Stefan Stefański (Stefan Stefański) | Actor | 1905 | 1 | |
| Szymański, Jan | Jan Szymański (Jan Szymański) | Actor | 1905 - 1911 | 5 | |
| Sheppard, Josephine | Josephine Sheppard (Josephine Sheppard) | Actor | 1905 | 1 | |
| Shelton, George | George Shelton (George Shelton) | Actor | 1905 | 1 | |
| Schmid, Adolf | Adolf Schmid (Adolf Schmid) | Conductor, Musical Director | 1905 - 1909 | 2 | |
| Sumper, Seweryna | Seweryna Sumper (Seweryna Sumper) | Actor | 1905 | 1 | |
| Stojtscheva, Teodorina | Teodorina Stojtscheva (Teodorina Stojtscheva) | Actor | 1905 - 1942 | 8 | |
| Salom, Louise | Louise Salom (Louise Salom) | Actor | 1905 | 1 | |
| Smith, Frederick | Frederick Smith (Frederick Smith) | Actor | 1905 | 1 | |
| Somlóné, Margit B. | Margit B. Somlóné (Margit B. Somlóné) | Translator | 1905 | 1 | |
| Sándor, József | József Sándor (József Sándor) | Actor | 1905 - 1908 | 5 | |
| Schmitt, - | - Schmitt (- Schmitt) | Actor | 1907 - 1911 | 4 | |
| Schmitt, Jeanne | Jeanne Schmitt | Actor | 1907 - 1911 | 4 | |
| St. Nenov, R. | R. St. Nenov (R. St. Nenov) | Actor | 1906 | 1 | |
| Snezhina, Elena | Elena Snezhina (Elena Snezhina) | Actor | 1906 - 1937 | 4 | |
| Sarafova, Donka | Donka Sarafova (Donka Sarafova) | Actor | 1906 - 1908 | 4 | |
| Stojtschev, Petar | Petar Stojtschev (Petar Stojtschev) | Actor | 1906 - 1908 | 3 | |
| Salvini, Gustavo | Gustavo Salvini (Gustavo Salvini) | Actor | 1906 - 1928 | 5 | |
| Salvini, Ida | Ida Salvini | Actor | 1906 - 1928 | 4 | |
| Sylvie, - | - Sylvie (- Sylvie) | Actor | 1906 - 1907 | 2 | |
| Saverne, Georges | Georges Saverne | Actor | 1906 | 1 | |
| Scardin, Paul | Paul Scardin (Paul Scardin) | Actor | 1906 | 1 | |
| Sadovskij, Prov | Prov Sadovskij (Prov Sadovskij) | Actor | 1906 | 1 | |
| Swanström, Karin | Karin Swanström (Karin Swanström) | Actor | 1906 - 1921 | 2 | |
| Schultz, Carl | Carl Schultz (Carl Schultz) | Actor | 1906 | 1 | |
| Szymborski, Jan | Jan Szymborski (Jan Szymborski) | Actor, Director | 1906 - 1909 | 2 | |
| Santoucha, - | - Santoucha | Actor | 1906 - 1907 | 2 | |
| Stoddard, S. B. | S. B. Stoddard (S. B. Stoddard) | Actor | 1906 - 1907 | 3 | |
| Sapunov, Nikolai | Nikolai Sapunov (Nikolai Sapunov) | Designer | 1906 | 1 | |
| Starzewska, Antonina | Antonina Starzewska (Antonina Starzewska) | Actor | 1906 | 1 | |
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