| Zerbo, Gaetano | Gaetano Zerbo | Actor | 1987 - 1990 | 2 | |
| Zandén, Philip | Philip Zandén | Actor, Adaptation, Costume Designer, Designer, Director | 1987 - 2005 | 22 | 1 |
| Zurmühle, Mark | Mark Zurmühle | Director | 1987 - 2010 | 7 | 1 |
| Ziegler, Joseph | Joseph Ziegler | Actor | 1987 - 2016 | 4 | 1 |
| Zwak, Zbigniew | Zbigniew Zwak | Actor | 1988 | 1 | |
| Zanev, Konstantin | Konstantin Zanev | Actor | 1988 | 2 | |
| Zeuthen, Jesper | Jesper Zeuthen | Actor, Musician | 1989 | 3 | |
| Zambon, Cathy | Cathy Zambon | Actor | 1989 | 1 | |
| Zarifis, Damianos | Damianos Zarifis | Costume Designer, Designer | 1989 | 4 | |
| Zeijlmans, Leny | Leny Zeijlmans | Lighting Designer | 1989 | 1 | |
| Zarikos, Fokion | Fokion Zarikos | Actor | 1989 | 1 | |
| zu Salm-Salm, Christiane | Christiane zu Salm-Salm | Actor | 1989 | 1 | |
| Ziembińska, Halina | Halina Ziembińska | Actor | 1989 - 1999 | 5 | |
| Züger, Heidi | Heidi Züger | Actor | 1989 - 2002 | 2 | |
| Znamenák, István | István Znamenák | Actor, Designer | 1989 - 2005 | 4 | 1 |
| Zappa, Neni | Neni Zappa | Musician | 1990 | 1 | |
| Zucchi, Augusto | Augusto Zucchi | Director | 1990 | 1 | |
| Zahner, Tom | Tom Zahner | Actor | 1990 | 1 | |
| Zschieschow, Esther | Esther Zschieschow | Actor | 1990 | 2 | |
| Zandarski, Grace | Grace Zandarski | Actor | 1990 | 2 | |
| Zdravković, Milan | Milan Zdravković | Actor | 1990 | 1 | |
| Zetterman, Lotta | Lotta Zetterman | Costume Designer | 1990 - 1991 | 3 | |
| Zeller, Bibiana | Bibiana Zeller | Actor | 1990 - 1997 | 2 | |
| Zschoch, Saskia | Saskia Zschoch | Costume Designer, Designer | 1990 - 2002 | 4 | |
| Zschocke, Mirko | Mirko Zschocke | Actor | 1990 - 2003 | 3 | |
| Zouvi, Alain | Alain Zouvi | Actor | 1991 | 1 | |
| Zadra, Christoph | Christoph Zadra | Actor | 1991 | 1 | |
| Zawodziński, Waldemar | Waldemar Zawodziński | Adaptation, Designer, Director | 1991 | 3 | |
| Zygadlo, Peter | Peter Zygadlo | Lighting Designer | 1991 | 6 | |
| Zamachowski, Zbigniew | Zbigniew Zamachowski | Actor | 1991 | 2 | 1 |
| Zohn, Marjorie | Marjorie Zohn | Actor | 1991 | 1 | |
| Zitman, Nelleke | Nelleke Zitman | Actor | 1991 | 2 | |
| Zimová, Jaroslava | Jaroslava Zimová | Actor | 1991 | 3 | |
| Zolnay, Zsuzsa | Zsuzsa Zolnay | Actor | 1991 | 1 | |
| Zubornyák, Zoltán | Zoltán Zubornyák | Actor | 1991 | 1 | |
| Zion, Gabriela | Gabriela Zion | Actor | 1991 | 3 | |
| Ziethen, Horst | Horst Ziethen | Actor | 1991 | 5 | |
| Zdybał, Leszek | Leszek Zdybał | Actor | 1991 | 1 | |
| Zemgals, Gunars | Gunars Zemgals | Designer | 1991 | 1 | |
| Zidar, Vojko | Vojko Zidar | Actor | 1991 | 8 | |
| Zivanos, Petros | Petros Zivanos | Director, Translator | 1991 | 2 | 1 |
| Zach, Jeffrey R. | Jeffrey R. Zach | Actor | 1991 - 1992 | 9 | |
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