| Kocsó, Gábor | Gábor Kocsó | Actor | 1991 - 1994 | 6 | |
| Kriener, Martin | Martin Kriener | Actor | 1990 | 6 | |
| Klie, Matthias | Matthias Klie | Actor | 1990 | 1 | |
| Kober, Adrian | Adrian Kober | Musician | 1990 | 1 | |
| Kent, David G. | David G. Kent | Director | 1991 | 1 | |
| Kleij, Lis, van der | Lis van der Kleij | Choreographer | 1991 | 1 | |
| Kuiper, Marcella | Marcella Kuiper | Actor | 1991 | 1 | |
| Kevin, Michael | Michael Kevin | Actor | 1990 | 2 | |
| Kempen, Rhea, van | Rhea van Kempen | Actor | 1991 | 1 | |
| Koelemeijer, Judith | Judith Koelemeijer | Actor | 1991 | 1 | |
| Kremer, Dan | Dan Kremer | Actor | 1990 - 2002 | 2 | |
| Klánová, Eva | Eva Klánová | Actor | 1991 | 2 | |
| Krüger, Christiana | Christiana Krüger | Actor | 1989 - 1992 | 3 | |
| Kniesbeck, Matthias | Matthias Kniesbeck | Actor | 1991 | 1 | |
| Kennedy, Jo | Jo Kennedy | Actor | 1990 | 1 | |
| Körtvélyessy, Zsolt | Zsolt Körtvélyessy | Actor | 1967 - 1991 | 2 | |
| Kun, Tibor | Tibor Kun | Actor | 1978 - 1991 | 2 | |
| Kageyama, Hitomi | Hitomi Kageyama | Actor | 1990 | 1 | |
| Konig, Yvette | Yvette Konig | Actor | 1990 | 1 | |
| Kammerer, Georg | Georg Kammerer | Designer | 1991 | 1 | |
| Karadimas, Taki | Taki Karadimas | Actor | 1991 | 1 | |
| Kock, Daniela | Daniela Kock | Actor, Costume Designer | 1991 | 4 | |
| Kunze, Susanne | Susanne Kunze | Actor | 1991 | 1 | |
| Kaps-Zurmahr, Helmut | Helmut Kaps-Zurmahr | Actor | 1956 - 1959 | 2 | |
| Kellner, Helmut | Helmut Kellner | Actor | 1991 | 3 | |
| Kanter, Christoph | Christoph Kanter | Designer | 1988 | 1 | |
| Kurš, Antonín | Antonín Kurš | Director | 1939 - 1956 | 2 | |
| Korpi, Jukka | Jukka Korpi | Actor | 1991 - 1993 | 20 | |
| Kossowsky, Jorge | Jorge Kossowsky | Assistant Director, Director | 1952 - 1956 | 3 | |
| Kropff, Joop | Joop Kropff | Costume Designer, Designer | 1956 | 2 | |
| Karsten, Fred | Fred Karsten | Actor | 1956 - 1963 | 3 | |
| Kealey, Patrick | Patrick Kealey | Director | 1992 | 1 | |
| Klar, Wolfgang | Wolfgang Klar | Director | 1992 | 1 | |
| Klopfstock, Susanne | Susanne Klopfstock | Costume Designer, Designer | 1992 | 2 | |
| Keats, David | David Keats | Actor | 1992 | 1 | |
| Köhntopp, Katharina | Katharina Köhntopp | Actor | 1992 | 1 | |
| Kokoschka, M. | M. Kokoschka | Actor | 1992 | 1 | |
| Keuchel, Jürgen-Helmut | Jürgen-Helmut Keuchel | Actor, Adaptation | 1992 - 2015 | 2 | |
| Karamiteva, Margarita | Margarita Karamiteva | Actor | 1988 | 1 | |
| Karaivanova, Zhana | Zhana Karaivanova | Actor | 1988 | 1 | |
| Kwiatkowska, Tatiana | Tatiana Kwiatkowska | Costume Designer | 1991 - 1997 | 2 | |
| Krukówna, Agnieszka | Agnieszka Krukówna | Actor | 1991 - 1997 | 4 | |
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