| Santo, Michael | Michael Santo | Actor | 1980 | 1 | |
| Simmons, Jonathan, Kimble | Jonathan Kimble Simmons | Actor | 1980 | 1 | |
| Seiler, Denys | Denys Seiler | Director | 1980 | 1 | |
| Schaub, Randy | Randy Schaub | Actor | 1980 | 1 | |
| Smiley, John | John Smiley | Actor | 1980 | 1 | |
| Solberg, Elisabeth | Elisabeth Solberg | Actor | 1980 | 1 | |
| Sommer, Albrecht | Albrecht Sommer | Director | 1980 | 1 | |
| Saaristo, Olavi | Olavi Saaristo | Actor | 1980 | 1 | |
| Sailio, Sinikka | Sinikka Sailio | Actor | 1980 | 2 | |
| Stein, Ina | Ina Stein | Actor | 1980 | 1 | |
| Salvador, Michael | Michael Salvador | Actor | 1980 | 1 | |
| Seibel, Mary | Mary Seibel | Actor | 1980 | 2 | |
| Schibler, Ruth | Ruth Schibler | Actor | 1980 | 1 | |
| Stalder, Theres | Theres Stalder | Actor, Adaptation | 1980 | 2 | |
| Strahm-Hügli, Bern | Bern Strahm-Hügli | Costume Designer | 1980 | 1 | |
| Stroud, Michael | Michael Stroud | Actor | 1980 | 2 | |
| Starkey, Colin | Colin Starkey | Actor | 1980 | 1 | |
| Shakespeare, Robert, A | Robert A Shakespeare | Lighting Designer, Sound Designer | 1980 | 2 | |
| Saalbach, Astrid | Astrid Saalbach | Actor | 1980 | 1 | |
| Sale, James | James Sale | Lighting Designer | 1980 | 1 | |
| Spiro, Alyson | Alyson Spiro | Actor | 1980 | 6 | |
| Siraste, Kirsti | Kirsti Siraste | Translator | 1980 | 1 | |
| Sylvestre, Cleo | Cleo Sylvestre | Actor | 1980 | 5 | |
| Stanbridge, Martyn | Martyn Stanbridge | Actor | 1980 | 7 | |
| Stolte, C. | C. Stolte | Actor | 1980 | 1 | |
| Sweeney, Liam | Liam Sweeney | Actor | 1980 | 16 | |
| Stefanov, Emil | Emil Stefanov | Actor | 1980 | 1 | |
| Stankova, Dobrinka | Dobrinka Stankova | Actor | 1980 | 1 | |
| Sotirova, Aneta | Aneta Sotirova | Actor | 1980 | 1 | |
| Scheinpflug, G. | G. Scheinpflug | Costume Designer, Designer | 1980 | 2 | |
| Striezel, D. | D. Striezel | Actor | 1980 | 1 | |
| Schneider, W. | W. Schneider | Actor | 1980 | 1 | |
| Strauß, F. | F. Strauß | Actor | 1980 | 2 | |
| Scheidl, M. | M. Scheidl | Actor | 1980 | 3 | |
| Slavova, Svetlana | Svetlana Slavova | Actor | 1980 | 1 | |
| Sassoli, Dina | Dina Sassoli | Actor | 1980 | 1 | |
| Sheard, Michael | Michael Sheard | Actor | 1980 | 1 | |
| Seïrli, Ersi | Ersi Seïrli | Choreographer | 1980 - 1981 | 3 | |
| Swarte, Etienne de | Etienne de Swarte | Actor | 1980 - 1981 | 2 | |
| Sugi, Yayoi | Yayoi Sugi | Actor | 1980 - 1987 | 2 | |
| Schirinzi, Tino | Tino Schirinzi | Actor | 1980 - 1988 | 3 | |
| Solovera, Patricio | Patricio Solovera | Composer | 1980 - 1990 | 2 | |
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