| Sinka, Károly | Károly Sinka | Actor | 1979 - 1987 | 2 | |
| Schneider, Eric | Eric Schneider | Actor, Director | 1979 - 1992 | 2 | |
| Schmaus, Cornelia | Cornelia Schmaus | Actor | 1979 - 1993 | 2 | |
| Schjelderup, Halvor | Halvor Schjelderup | Lighting Designer | 1979 - 1996 | 78 | |
| Satanowski, Jerzy | Jerzy Satanowski | Composer | 1979 - 1997 | 4 | |
| Stangertz, Göran | Göran Stangertz | Actor, Director | 1979 - 2000 | 5 | 1 |
| Siren, Markku | Markku Siren | Costume Designer, Designer | 1979 - 2006 | 4 | |
| Satie, Erik | Erik Satie | Composer | 1979 - 2007 | 24 | |
| Selwyn, Louis | Louis Selwyn | Actor, Producer | 1979 - 2010 | 16 | |
| Smith, Christine | Christine Smith | Actor | 1979 - 2012 | 2 | |
| Shepard, John | John Shepard | Actor | 1979 - 2016 | 3 | 2 |
| Stormoen, Even | Even Stormoen | Actor | 1979 - 2017 | 17 | 2 |
| Stautland, Karin | Karin Stautland | Actor | 1979 - 2017 | 14 | 1 |
| Sinclair, Malcolm | Malcolm Sinclair | Actor | 1979 - 2019 | 3 | 1 |
| Sturgess, Rosie | Rosie Sturgess | Actor | 1980 | 1 | |
| Schmidt, Gabriele | Gabriele Schmidt | Actor | 1980 | 1 | |
| 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 | |
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