| Kirz, Franziska | Franziska Kirz (Franziska Kirz) | | | | |
| Kuhlmann, Carl | Carl Kuhlmann (Carl Kuhlmann) | Actor | 1937 - 1957 | 5 | |
| Kawaji, Hiroshi | Hiroshi Kawaji (Hiroshi Kawaji) | Director | 1976 - 1977 | 3 | |
| Kuroda, Yuko | Yuko Kuroda (Yuko Kuroda) | Costume Designer | 1994 | 1 | |
| King, Dennis | Dennis King (Dennis King) | Actor | 1937 - 1938 | 7 | |
| Kúnos, László | László Kúnos (László Kunos) | Translator | 1991 - 2019 | 55 | |
| Kajdassy, Ferike | Ferike Kajdassy (Ferike Kajdassy) | Actor | 1941 | 1 | |
| Kovács, Irénke | Irénke Kovács (Irénke Kovács) | Actor | 1941 | 1 | |
| Keller, A | A Keller (A Keller) | Actor | 1994 | 1 | |
| Kryzova, N. V. | N. V. Kryzova (N. V. Kryzova) | Actor | 1907 | 1 | |
| Kozina, A | A Kozina (A Kozina) | Actor | 1914 | 1 | |
| Kretisčenko, S. | S. Kretisčenko (S. Kretisčenko) | Actor | 1914 | 1 | |
| Kiroff, S | S Kiroff (S Kiroff) | Actor | 1908 | 1 | |
| Kaiser, Matthias | Matthias Kaiser (Matthias Kaiser) | Dramaturg | 1990 | 1 | |
| Kirsten, Stefanie | Stefanie Kirsten (Stefanie Kirsten) | Actor | 1990 - 2008 | 2 | |
| Khanlarova, Mehriban | Mehriban Khanlarova (Mehriban Khanlarova) | Actor | 2006 | 1 | |
| Kjærulff-Schmidt, Palle | Palle Kjærulff-Schmidt (Palle Kjærulff-Schmidt) | Director | 1974 - 2000 | 2 | |
| Krogh, Malene | Malene Krogh (Malene Krogh) | Actor | 1974 - 2000 | 2 | |
| Kępińska, Elżbieta | Elżbieta Kępińska (Elżbieta Kępińska) | Actor | 1962 - 1975 | 2 | |
| Kowalski, Władysław | Władysław Kowalski (Władysław Kowalski) | Actor | 1972 - 2006 | 9 | |
| Kromminga, Katharina | Katharina Kromminga (Katharina Kromminga) | Costume Designer | 2002 - 2017 | 8 | |
| Kellner, Berthold | Berthold Kellner (Berthold Kellner) | Actor, Director | 1997 - 2001 | 2 | |
| Keller, Achim | Achim Keller (Achim Keller) | Actor | 1997 | 1 | |
| Kratzel, Corinna | Corinna Kratzel (Corinna Kratzel) | Actor | 1997 | 1 | |
| Kośnierska, Janina | Janina Kośnierska (Janina Kośnierska) | Actor | 1906 | 1 | |
| Klöpfer, Eugen | Eugen Klöpfer (Eugen Klöpfer) | Actor | 1914 - 1937 | 11 | |
| Kalotai, Teri | Teri Kalotai (Teri Kalotai) | Actor | 1928 | 1 | |
| Kato, Masaharu | Masaharu Kato (Masaharu Kato) | Director | 1993 | 1 | |
| Kucharesin, Valerj | Valerj Kucharesin (Valerj Kucharesin) | Actor | 2003 - 2006 | 2 | |
| Kessler, Alfred S | Alfred S Kessler (Alfred S Kessler) | Director | 1976 | 1 | |
| Kalser, Erwin | Erwin Kalser (Erwin Kalser) | Actor, Director | 1914 - 1950 | 9 | |
| Kammerzell, Gertie | Gertie Kammerzell (Gertie Kammerzell) | Actor | 1934 | 1 | |
| Kovanko, Lilga | Lilga Kovanko (Lilga Kovanko) | Actor | 1977 - 1978 | 2 | |
| Klintsjeva, Sandra | Sandra Klintsjeva (Sandra Klintsjeva) | Costume Designer | 2006 | 1 | |
| Kărkelanov, Georgi | Georgi Kărkelanov (Georgi Kărkelanov) | Actor | 2006 | 1 | |
| Kern, András | András Kern (András Kern) | Actor | 1989 | 2 | |
| Kiss, Jenő | Jenő Kiss (Jenő Kiss) | Actor | 1989 | 2 | |
| Kausch, Michael | Michael Kausch (Michael Kausch) | Actor | 1979 - 2003 | 11 | |
| Kirshenbaum, Debra | Debra Kirshenbaum (Debra Kirshenbaum) | Actor | 2006 | 1 | |
| Koren, Adam | Adam Koren (Adam Koren) | Actor | 2006 | 1 | |
| Koren, Sophia Bella | Sophia Bella Koren (Sophia Bella Koren) | Actor | 2006 | 1 | |
| Klein, Karin | Karin Klein (Karin Klein) | Actor | 1987 - 2007 | 4 | |
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