| 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 | |
| Krastinš, Ivars | Ivars Krastinš | Actor | 1993 | 1 | |
| Kaktina, Liga | Liga Kaktina | Actor | 1993 | 1 | |
| Kempf, Arno | Arno Kempf | Actor | 1991 - 2016 | 10 | |
| Kampschulte, Peter | Peter Kampschulte | Actor | 1991 | 7 | |
| Kühn, Carsten | Carsten Kühn | Actor | 1991 | 1 | |
| Konicek, James, C. | James C. Konicek | Actor | 1993 | 1 | |
| Krause, Brigitte | Brigitte Krause | Actor | 1993 | 1 | |
| Kornitzer, Laszlo | Laszlo Kornitzer | Director | 1993 | 1 | |
| Keyworth, Ben | Ben Keyworth | Actor | 1991 | 1 | |
| Kéri, Kitty | Kitty Kéri | Actor | 2014 | 1 | |
| Keresztes, Gábor | Gábor Keresztes | Actor | 2014 | 1 | |
| Klein, Roland | Roland Klein | Actor | 1993 | 1 | |
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