| Kratochwil, Franz | Franz Kratochwil | Actor | 1990 | 1 | |
| Kaiser, Dieter | Dieter Kaiser | Actor | 1990 | 1 | |
| Kurihara, Komaki | Komaki Kurihara | Actor | 1990 | 1 | |
| Kimura, Mifue | Mifue Kimura | Actor | 1990 | 1 | |
| Klepper, Pia | Pia Klepper | Costume Designer | 1990 | 1 | |
| Kriener, Martin | Martin Kriener | Actor | 1990 | 6 | |
| Klie, Matthias | Matthias Klie | Actor | 1990 | 1 | |
| Kober, Adrian | Adrian Kober | Musician | 1990 | 1 | |
| Kevin, Michael | Michael Kevin | Actor | 1990 | 2 | |
| Kennedy, Jo | Jo Kennedy | Actor | 1990 | 1 | |
| Koman, Jacek | Jacek Koman | Actor | 1990 | 5 | 1 |
| Kageyama, Hitomi | Hitomi Kageyama | Actor | 1990 | 1 | |
| Konig, Yvette | Yvette Konig | Actor | 1990 | 1 | |
| Kvalbein, Aage | Aage Kvalbein | Musician | 1990 | 1 | |
| Kanou, Toyomi | Toyomi Kanou | Costume Designer | 1990 | 1 | |
| Katušić-Balen, Ankica | Ankica Katušić-Balen | Translator | 1990 | 1 | |
| Krstulović, Zdravka | Zdravka Krstulović | Actor | 1990 | 1 | |
| Kovačić, Vasja | Vasja Kovačić | Actor | 1990 | 1 | |
| Koštro, Silvana | Silvana Koštro | Actor | 1990 | 1 | |
| Kopylov, Ju. | Ju. Kopylov | Director | 1990 | 1 | |
| Kornev, V. | V. Kornev | Actor | 1990 | 1 | |
| Kliščevskaja, E. | E. Kliščevskaja | Actor | 1990 | 1 | |
| Kahan, Bente | Bente Kahan | Actor | 1990 - 1991 | 2 | 1 |
| Kranidiotis, Panos | Panos Kranidiotis | Actor | 1990 - 1991 | 2 | |
| Karagianni, Katerina | Katerina Karagianni | Actor | 1990 - 1991 | 2 | |
| Kahl, Gisela | Gisela Kahl | Dramaturg | 1990 - 1992 | 2 | |
| Kraska, Brigitte | Brigitte Kraska | Mask Maker | 1990 - 1992 | 2 | |
| Kühnert, Steffi | Steffi Kühnert | Actor | 1990 - 1992 | 2 | 1 |
| Kupfer, Bettina | Bettina Kupfer | Actor | 1990 - 1992 | 6 | 1 |
| Komine, Lily | Lily Komine | Costume Designer | 1990 - 1994 | 4 | |
| Kentaka, Lili | Lili Kentaka | Costume Designer, Designer | 1990 - 1994 | 4 | |
| Kourmpas, Panagiotis | Panagiotis Kourmpas | Lighting Designer | 1990 - 1994 | 2 | |
| Knop, Václav | Václav Knop | Actor | 1990 - 1995 | 4 | |
| Kaspersen, Jan | Jan Kaspersen | Composer | 1990 - 1996 | 2 | |
| Klein, Katrin | Katrin Klein | Actor | 1990 - 1997 | 2 | 1 |
| Kleiven, Nils | Nils Kleiven | Actor | 1990 - 1998 | 21 | |
| Knudsen, Roy | Roy Knudsen | Sound Designer | 1990 - 2001 | 5 | |
| Kremer, Dan | Dan Kremer | Actor | 1990 - 2002 | 2 | |
| Kaminski, Roman | Roman Kaminski | Actor | 1990 - 2004 | 6 | |
| Kirsten, Stefanie | Stefanie Kirsten | Actor | 1990 - 2008 | 2 | |
| Kvamme, Bodil | Bodil Kvamme | Adaptation, Designer, Dramaturg | 1990 - 2009 | 31 | 1 |
| Kerckhoffs, Han | Han Kerckhoffs | Actor | 1990 - 2013 | 30 | |
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