| Kosiniak, Jakub | Jakub Kosiniak | Actor | 1991 | 1 | |
| Knapp, Ralf | Ralf Knapp | Director | 1991 | 1 | |
| Kublinskis, Mihails | Mihails Kublinskis | Director | 1991 | 1 | |
| Kugrēna, Lāsma | Lāsma Kugrēna | Actor | 1991 | 1 | 1 |
| Kirsone, Inese | Inese Kirsone | Actor | 1991 | 1 | 1 |
| Kubilis, Jānis | Jānis Kubilis | Actor | 1991 | 1 | |
| Kemp, Polly | Polly Kemp | Actor | 1991 | 1 | |
| Kampschulte, Peter | Peter Kampschulte | Actor | 1991 | 7 | |
| Kühn, Carsten | Carsten Kühn | Actor | 1991 | 1 | |
| Keyworth, Ben | Ben Keyworth | Actor | 1991 | 1 | |
| Konstantinov, Ljupče | Ljupče Konstantinov | Composer | 1991 | 1 | |
| Kranjc, Mojca | Mojca Kranjc | Dramaturg | 1991 | 1 | |
| Kalatzopoulos, Giannis | Giannis Kalatzopoulos | Actor, Adaptation, Director, Translator | 1991 | 5 | |
| Kaïlas, Vasilis | Vasilis Kaïlas | Actor | 1991 | 1 | |
| Koulourioti, Eleni | Eleni Koulourioti | Actor | 1991 | 4 | |
| Koizumi, Kuniko | Kuniko Koizumi | Actor | 1991 | 1 | |
| Kirishima, Toru | Toru Kirishima | Actor | 1991 | 1 | |
| Kyrtzaki, Maria | Maria Kyrtzaki | Translator | 1991 | 1 | |
| Khan, Irfan | Irfan Khan | Actor | 1991 | 1 | |
| Karasek, Daniel | Daniel Karasek | Adaptation, Director, Producer, Translator | 1990 - 2019 | 63 | 1 |
| Kammer, Nancy-Elizabeth | Nancy-Elizabeth Kammer | Actor | 1990 - 2019 | 2 | 1 |
| Kerckhoffs, Han | Han Kerckhoffs | Actor | 1990 - 2013 | 30 | |
| Kvamme, Bodil | Bodil Kvamme | Adaptation, Designer, Dramaturg | 1990 - 2009 | 31 | 1 |
| Kirsten, Stefanie | Stefanie Kirsten | Actor | 1990 - 2008 | 2 | |
| Kaminski, Roman | Roman Kaminski | Actor | 1990 - 2004 | 6 | |
| Kremer, Dan | Dan Kremer | Actor | 1990 - 2002 | 2 | |
| Knudsen, Roy | Roy Knudsen | Sound Designer | 1990 - 2001 | 5 | |
| Kleiven, Nils | Nils Kleiven | Actor | 1990 - 1998 | 21 | |
| Klein, Katrin | Katrin Klein | Actor | 1990 - 1997 | 2 | 1 |
| Kaspersen, Jan | Jan Kaspersen | Composer | 1990 - 1996 | 2 | |
| Knop, Václav | Václav Knop | Actor | 1990 - 1995 | 4 | |
| 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 | |
| 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 |
| 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 | |
| Kaiser, Matthias | Matthias Kaiser | Dramaturg | 1990 | 1 | |
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