| Straube, Gudrun | Gudrun Straube | Actor | 1956 | 1 | |
| Seifert, Jörn | Jörn Seifert | Actor | 1956 | 1 | |
| Söder, Klaus | Klaus Söder | Actor | 1956 | 1 | |
| Schütte, Christa | Christa Schütte | Actor | 1956 | 1 | |
| Stahr, Christa | Christa Stahr | Actor | 1956 | 1 | |
| Steinmetz, Eike | Eike Steinmetz | Actor | 1956 | 1 | |
| Smith, Jack | Jack Smith | Actor, Composer | 1956 | 3 | |
| Scheidegger, Joseph | Joseph Scheidegger | Actor | 1956 | 2 | |
| Skudra, Austra | Austra Skudra | Actor | 1956 | 1 | |
| Sertel, Neclâ | Neclâ Sertel | Actor | 1956 | 1 | |
| Solberg, Tormod | Tormod Solberg | Sound Designer | 1956 | 1 | |
| Schiefloe, Nancy | Nancy Schiefloe | Actor | 1956 | 1 | |
| Sparks, Bruce | Bruce Sparks | Actor | 1956 | 1 | |
| Satterfield, Roma | Roma Satterfield | Actor | 1956 | 2 | |
| Smith, Edgar | Edgar Smith | Actor | 1956 | 1 | |
| Sterian, Nelly | Nelly Sterian | Actor | 1956 | 1 | |
| Stambuliu, Armand | Armand Stambuliu | Director | 1956 | 1 | |
| Sorlisi, Simona | Simona Sorlisi | Actor | 1956 | 1 | |
| Silvani, Aldo | Aldo Silvani | Actor | 1956 | 1 | |
| S' Jongers, Irène | Irène S' Jongers | Actor | 1956 - 1957 | 6 | |
| Sneyers, N. | N. Sneyers | Actor | 1956 - 1957 | 3 | |
| Seybert, Karin | Karin Seybert | Actor | 1956 - 1958 | 2 | |
| Sack, Jutta | Jutta Sack | Actor | 1956 - 1958 | 2 | |
| Solø-Nilsen, Sverre | Sverre Solø-Nilsen | Actor | 1956 - 1960 | 2 | |
| Sire, Agustin | Agustin Sire | Actor, Director, Translator | 1956 - 1962 | 3 | 1 |
| Sotoconil, Ruben | Ruben Sotoconil | Actor | 1956 - 1962 | 2 | 1 |
| Schneider-Siemsen, Günther | Günther Schneider-Siemsen | Designer | 1956 - 1965 | 2 | |
| Schott, Margarete | Margarete Schott | Actor | 1956 - 1966 | 2 | |
| Sheppard, Guy | Guy Sheppard | Costume Designer, Designer | 1956 - 1967 | 6 | |
| Smyrner, Paul | Paul Smyrner | Actor | 1956 - 1970 | 2 | |
| Shuman, Roy | Roy Shuman | Actor | 1956 - 1971 | 3 | 1 |
| Specht, Heinz | Heinz Specht | Choreographer, Dancer, Director | 1956 - 1976 | 5 | |
| Skalicki, Wolfram | Wolfram Skalicki | Designer | 1956 - 1976 | 2 | |
| Strobl, Rudolf | Rudolf Strobl | Actor | 1956 - 1985 | 4 | |
| Savvopoulou, Tania | Tania Savvopoulou | Actor | 1956 - 1995 | 13 | |
| Sundström, Frank | Frank Sundström | Actor, Director | 1956 - 1998 | 16 | 1 |
| Svendsen, Torben, Anton | Torben Anton Svendsen | Director | 1956 - 2003 | 4 | 1 |
| Simonsen, Kari | Kari Simonsen | Actor | 1956 - 2008 | 38 | 1 |
| Svoboda, Jiří | Jiří Svoboda | Actor, Director | 1956 - 2015 | 2 | 1 |
| Schumacher, Ingeborg | Ingeborg Schumacher | Actor | 1957 | 1 | |
| Szeliga, Anna | Anna Szeliga | Costume Designer | 1957 | 1 | |
| Sawko, Władysław | Władysław Sawko | Actor | 1957 | 1 | |
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