| Scheitlin, Bice | Bice Scheitlin | Choreographer | 1955 | 1 | |
| Skrodele, Astra | Astra Skrodele | Actor | 1955 | 1 | |
| Severson, Patricia | Patricia Severson | Actor | 1955 | 1 | |
| Salem, Sérgio | Sérgio Salem | Actor | 1955 | 1 | |
| Spalinger, Sibylle | Sibylle Spalinger | Choreographer | 1955 | 1 | |
| Spoerri, Daniel | Daniel Spoerri | Actor | 1955 | 2 | |
| Strube, Christa | Christa Strube | Actor | 1955 | 1 | |
| Schmidt, Rudolf | Rudolf Schmidt | Actor | 1955 | 1 | |
| Stadler, Priska | Priska Stadler | Actor | 1955 | 1 | |
| Stuart, Graham | Graham Stuart | Actor | 1955 | 2 | |
| Scott, Alex | Alex Scott | Actor | 1955 | 2 | |
| Smirnov, V. | V. Smirnov | Actor | 1955 | 1 | |
| Sierra Izquierdo, Abel | Abel Sierra Izquierdo | Actor | 1955 | 1 | |
| Shepherd, Patricia | Patricia Shepherd | Actor | 1955 | 1 | |
| Solovyov, Nikolai | Nikolai Solovyov | Designer | 1955 | 1 | |
| Sever, Septimiu | Septimiu Sever | Actor | 1955 - 1965 | 3 | |
| Schütz, Hannes | Hannes Schütz | Actor | 1955 - 1966 | 3 | |
| Sjöstrand, Per | Per Sjöstrand | Actor, Director, Producer, Translator | 1955 - 1970 | 7 | 1 |
| Sundberg, Hans | Hans Sundberg | Actor | 1955 - 1973 | 5 | |
| Stoll, Walter | Walter Stoll | Actor | 1955 - 1977 | 4 | |
| Stiegler, Isolde | Isolde Stiegler | Actor | 1955 - 1978 | 2 | |
| Simonnæs, Karin | Karin Simonnæs | Actor | 1955 - 1981 | 72 | 1 |
| Skouloudis, Manolis | Manolis Skouloudis | Adaptation, Translator | 1955 - 1997 | 8 | |
| Sadolin, Birgit | Birgit Sadolin | Actor | 1955 - 2003 | 6 | |
| Strnisková, Viera | Viera Strnisková | Actor | 1955 - 2004 | 3 | 1 |
| Schildt, Henrik | Henrik Schildt | Actor | 1955 - 2005 | 10 | 1 |
| Sharp, Kathleen | Kathleen Sharp | Costume Designer | 1956 | 1 | |
| Simister, Jack | Jack Simister | Actor | 1956 | 1 | |
| Skinner, Charles | Charles Skinner | Designer | 1956 | 1 | |
| Starr, Vivian | Vivian Starr | Mask Maker | 1956 | 1 | |
| Shuping, Ji | Ji Shuping | Actor | 1956 | 1 | 2 |
| Shoemaker, Barbara Ann | Barbara Ann Shoemaker | Actor | 1956 | 1 | |
| Scrivano, Nivaldo | Nivaldo Scrivano | Actor | 1956 | 1 | |
| Scrivano, Ivânia | Ivânia Scrivano | Actor | 1956 | 1 | |
| Scrivano, Irani | Irani Scrivano | Actor | 1956 | 1 | |
| Scrivano, Vicente Eduardo | Vicente Eduardo Scrivano | Designer, Director | 1956 | 2 | |
| Sladkarova, Ivanka | Ivanka Sladkarova | Actor | 1956 | 1 | |
| Scharankova, Soja | Soja Scharankova | Actor | 1956 | 1 | |
| Salamanov, Nikola | Nikola Salamanov | Actor | 1956 | 1 | |
| Schulz-Wittan, Werner | Werner Schulz-Wittan | Director | 1956 | 1 | 1 |
| Strehlow, Joachim | Joachim Strehlow | Costume Designer, Designer | 1956 | 2 | |
| Schürer, Helga | Helga Schürer | Actor | 1956 | 1 | |
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