| King, Howard | Howard King | Lighting Designer | 1988 | 1 | |
| Klein, Steven M. | Steven M. Klein | Sound Designer | 1992 | 1 | |
| Kaiser, Doris, Maria | Doris Maria Kaiser | Actor | 1992 | 1 | |
| Katz, Natasha | Natasha Katz | Lighting Designer | 1992 - 2009 | 2 | |
| Krikorian, Paul | Paul Krikorian | Actor | 1988 | 1 | |
| Knott, Dewayne | Dewayne Knott | Director | 1988 | 1 | |
| Kemp, Brian | Brian Kemp | Actor | 1992 | 2 | |
| Kingshott, Dennis | Dennis Kingshott | Lighting Designer | 1992 | 2 | |
| Kouwenhoven, Annet | Annet Kouwenhoven | Actor | 1988 - 2000 | 7 | |
| Kistler, Sabine | Sabine Kistler | Actor | 1992 | 1 | |
| Kerpel, Roger Van | Roger Van Kerpel | Actor | 1992 - 2001 | 7 | |
| Kunze, Dietrich | Dietrich Kunze | Director | 1992 | 1 | |
| Krane, Målfrid | Målfrid Krane | Actor | 1988 | 1 | |
| Kreituse, A | A, Kreituse | Costume Designer | 1992 | 1 | |
| Kaare, Beate | Beate Kaare | Actor | 1988 | 1 | |
| Kummerow, Irmgard | Irmgard Kummerow | Actor | 1989 - 1991 | 2 | |
| Koschel, Uta | Uta Koschel | Actor | 1991 - 1993 | 2 | |
| Kvifte, Tellef | Tellef Kvifte | Musician | 1988 | 1 | |
| Kraayenzank, Henk | Henk Kraayenzank | Designer, Lighting Designer | 1992 | 2 | |
| Kværne, Elisabeth | Elisabeth Kværne | Musician | 1988 | 1 | |
| Konings, Anneke | Anneke Konings | Costume Designer | 1992 | 1 | |
| Kuyl, Ivo | Ivo Kuyl | Dramaturg | 1992 | 1 | |
| Keogh, Garrett | Garrett Keogh | Actor | 1988 - 1991 | 4 | |
| Korte, Hans | Hans Korte | Actor, Director | 1960 - 1988 | 7 | |
| Kastner, Gabriele | Gabriele Kastner | Actor | 1988 | 1 | |
| Kversøy, Beate P. | Beate P. Kversøy | Actor | 1988 | 1 | |
| Kizaki, Yuji | Yuji Kizaki | Adaptation, Director | 1988 | 2 | |
| Kuriki, Hideaki | Hideaki Kuriki | Adaptation | 1988 | 1 | |
| Kähling, Gerhard | Gerhard Kähling | Actor | 1988 | 1 | |
| Krauss, Naomi | Naomi Krauss | Actor | 1992 | 1 | |
| 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 | |
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