| Keller, Heinz | Heinz Keller | Actor | 1989 - 1992 | 2 | |
| Keßler, Erwin | Erwin Keßler | Actor | 1992 | 1 | |
| Kohnle, Hans | Hans Kohnle | Actor | 1977 - 1992 | 2 | |
| Kavvada, Nikos | Nikos Kavvada | Actor | 1992 | 1 | |
| Karafyllis, Simos | Simos Karafyllis | Costume Designer, Designer | 1992 | 2 | |
| Kokozidis, Iraklis | Iraklis Kokozidis | Actor | 1992 | 1 | |
| Kynigopoulos, Michalis | Michalis Kynigopoulos | Actor | 1992 | 1 | |
| Kronjäger, Nina | Nina Kronjäger | Actor | 1992 | 1 | |
| Krüger, Jochen | Jochen Krüger | Dramaturg | 1992 | 1 | |
| Kessel, Sophie von | Sophie von Kessel | Actor | 1992 | 1 | |
| Kadgin, Rolf | Rolf Kadgin | Actor | 1992 | 1 | |
| Kiba, Katsumi | Katsumi Kiba | Actor | 1992 - 2018 | 5 | |
| Kurosu, Hanako | Hanako Kurosu | Costume Designer | 1992 - 1994 | 3 | |
| Kress, Phyllis | Phyllis Kress | Costume Designer | 1992 | 1 | |
| Kaila, Marketta | Marketta Kaila | Actor, Dancer | 1992 - 2006 | 3 | |
| Kos, Albert | Albert Kos | Director | 1982 | 1 | |
| Kåge, Kristin | Kristin Kåge | Dancer | 1992 | 1 | |
| Kazakoff, Stephen | Stephen Kazakoff | Actor | 1989 | 1 | |
| Kehoe, Carol | Carol Kehoe | Actor | 1989 | 1 | |
| Kastoura, Sasa | Sasa Kastoura | Actor | 1989 | 2 | |
| Kühnis-Dietz, Peter | Peter Kühnis-Dietz | Actor | 1989 | 1 | |
| Kühnis-Dietz, Francesca | Francesca Kühnis-Dietz | Actor | 1989 | 1 | |
| Katsimichas, Giannis | Giannis Katsimichas | Actor | 1989 - 2024 | 2 | |
| Kalman, Jean | Jean Kalman | Lighting Designer | 1991 - 2011 | 10 | |
| Korterink, Thea | Thea Korterink | Actor | 1978 - 1982 | 2 | |
| Krontiris, Giorgos | Giorgos Krontiris | Actor | 1982 | 1 | |
| Kouvardas, Spyros | Spyros Kouvardas | Actor | 1982 | 1 | |
| Kaladamis, Manolis | Manolis Kaladamis | Costume Designer, Designer | 1982 | 2 | |
| Karlsson, Þráinn | Þráinn Karlsson | Actor | 1993 - 1998 | 2 | |
| Kelleher, Graham | Graham Kelleher | Actor | 1991 | 1 | |
| Konarska, Marta | Marta Konarska | Actor | 1991 - 2012 | 8 | |
| Kruczyński, Andrzej | Andrzej Kruczyński | Actor | 1991 | 1 | |
| Kosiniak, Jakub | Jakub Kosiniak | Actor | 1991 | 1 | |
| Knapp, Ralf | Ralf Knapp | Director | 1991 | 1 | |
| Kern, Gregor | Gregor Kern | Director | 1993 | 1 | |
| Kublinskis, Mihails | Mihails Kublinskis | Director | 1991 | 1 | |
| Kubilis, Jānis | Jānis Kubilis | Actor | 1991 | 1 | |
| Kemp, Polly | Polly Kemp | Actor | 1991 | 1 | |
| Komasa, Wiesław | Wiesław Komasa | Actor | 1993 | 1 | |
| Krzyżanowski, Marcin | Marcin Krzyżanowski | Composer | 1993 | 1 | |
| Kvala, Anita | Anita Kvala | Actor | 1993 | 1 | |
| Kalnarajs, Aivars | Aivars Kalnarajs | Actor | 1993 | 1 | |
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