| Karlsson, Karin | Karin Karlsson | Costume Designer | 1997 | 1 | |
| Karlsson, Morgan | Morgan Karlsson | Dancer | 2001 | 1 | |
| Karlsson, Robin | Robin Karlsson | Mask Maker | 2008 | 10 | |
| Karlsson, Sigurður | Sigurður Karlsson | Actor | 1976 - 1993 | 2 | |
| Karlsson, Willy | Willy Karlsson | Actor | 1990 | 1 | |
| Karlsson, Þráinn | Þráinn Karlsson | Actor | 1993 - 1998 | 2 | |
| Karm, Benny | Benny Karm | Designer | 1986 - 1987 | 3 | |
| Karm, Ingela | Ingela Karm | Designer | 1986 - 1987 | 3 | |
| Karm, Kaarel | Kaarel Karm | Actor | 1943 | 1 | |
| Karmakar, Sanjay | Sanjay Karmakar | Dancer | 2009 | 1 | |
| Karmakar, Tamalika | Tamalika Karmakar | Actor | 2009 | 1 | |
| Karmelić, Đuro | Đuro Karmelić | Actor | 1932 - 1941 | 2 | |
| Karmon, Yosef | Yosef Karmon | Actor | 1966 | 1 | |
| Karmona, Benito | Benito Karmona | Actor | 2009 | 1 | |
| Kärn, Jo | Jo Kärn | Actor | 1972 - 1998 | 4 | |
| Kärnä, Julia | Julia Kärnä | Actor | 1998 | 1 | |
| Karnasová, Andrea | Andrea Karnasová | Actor | 1999 | 1 | 1 |
| Karnblad, Mathias | Mathias Karnblad | Actor | 1997 | 1 | |
| Karnecki, Zbigniew | Zbigniew Karnecki | Musical Director | 1974 | 1 | |
| Karner, Brigitte | Brigitte Karner | Actor | 2002 - 2003 | 2 | |
| Karner, Gerhard | Gerhard Karner | Actor | 1997 - 2003 | 2 | |
| Karner, Karl | Karl Karner | Actor | 1903 | 1 | |
| Karner, Markus | Markus Karner | Designer | 2008 - 2010 | 2 | 1 |
| Karner, Peter | Peter Karner | Actor | 1966 | 1 | |
| Karni Cohen, Adam | Adam Karni Cohen | Director | 2001 | 1 | |
| Karnil, Eddie | Eddie Karnil | Actor | 1978 - 1984 | 3 | |
| Karnowsky, Friedrich | Friedrich Karnowsky | Actor | 1919 | 2 | |
| Karobath, Eva | Eva Karobath | Costume Designer | 2006 | 2 | |
| Karolak, Andrzej | Andrzej Karolak | Actor | 1977 | 1 | |
| Karolczak, Dorota | Dorota Karolczak | Designer | 2014 | 1 | |
| Karoliussen, Håkon | Håkon Karoliussen | Actor | 1998 - 2006 | 2 | 1 |
| Karoly, Lilly | Lilly Karoly | Actor | 1918 - 1956 | 5 | |
| Károlyi, Irén | Irén Károlyi | Actor | 1958 | 1 | |
| Károlyi, János | János Károlyi | Actor | 1920 | 1 | |
| Karouzos, Tzavalas | Tzavalas Karouzos | Actor | 1945 | 1 | |
| Kárová, Darina | Darina Kárová | Adaptation, Dramaturg | 1985 | 2 | 1 |
| Karow, Reinhard | Reinhard Karow | Actor | 1985 - 2002 | 7 | |
| Karp, György | György Karp | Actor | 2013 | 2 | |
| Karp, Isabel | Isabel Karp | Actor | 2017 | 1 | |
| Karp, Kenneth | Kenneth Karp | Actor | 1973 | 1 | |
| Kárpáthy, Sándor | Sándor Kárpáthy | Actor | 1908 | 1 | |
| Kárpáthy, Zoltán | Zoltán Kárpáthy | Actor, Choreographer | 1960 - 1965 | 2 | |
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