| Klauke, Peer | Peer Klauke | Actor | 1994 | 1 | |
| Klaudius, Fritz | Fritz Klaudius | Actor | 1927 | 1 | |
| Klau-Emken, Dieter | Dieter Klau-Emken | Actor | 2006 | 1 | |
| Klatt, Herbert B. | Herbert B. Klatt | Actor | 1938 | 1 | |
| Klata, Jan | Jan Klata | Director | 2015 - 2016 | 10 | 1 |
| Klasson, Ida Marianne Vassbotn | Ida Marianne Vassbotn Klasson | Actor | 2003 - 2013 | 5 | 1 |
| Klassina, Tatjana | Tatjana Klassina | Actor | 2001 | 1 | 1 |
| Klassen, Kevin | Kevin Klassen | Actor | 2019 | 1 | |
| Klaß, Dieter | Dieter Klaß | Costume Designer, Designer | 1996 | 2 | |
| Klaška, František | František Klaška | Actor | 2000 | 1 | |
| Klashman, Michael | Michael Klashman | Actor | 1994 | 1 | |
| Klas, Eri | Eri Klas | Conductor | 1992 | 1 | 1 |
| Klarwein, Jason | Jason Klarwein | Actor | 2018 | 1 | |
| Klarwein, Franz | Franz Klarwein | Actor | 1952 | 1 | |
| Klarskov, Paul | Paul Klarskov | Director | 2009 | 1 | |
| Klarreich, Michael | Michael Klarreich | Actor | 1966 | 1 | |
| Klarin Klár, Petr | Petr Klarin Klár | Dramaturg | 2017 | 2 | |
| Klaric, Michael | Michael Klaric | Actor | 1993 | 1 | |
| Klare, Claudius | Claudius Klare | Actor | 1998 | 1 | |
| Klára, Tompa | Tompa Klára | Actor | 1905 - 2010 | 7 | 8 |
| Klar, Wolfgang | Wolfgang Klar | Director | 1992 | 1 | |
| Klar, Katharina | Katharina Klar | Actor | 2011 - 2019 | 2 | |
| Klapperich-Mueller, Hannah | Hannah Klapperich-Mueller | Actor | 2019 | 1 | |
| Klapper, Jürgen | Jürgen Klapper | Costume Designer, Designer | 1975 | 2 | |
| Klåpbakken, Siv | Siv Klåpbakken | Dancer | 1989 | 1 | |
| Klante, Paul | Paul Klante | Actor | 1922 | 1 | |
| Klánová, Eva | Eva Klánová | Actor | 1991 | 2 | |
| Klaniczay, Gyula | Gyula Klaniczay | Actor | 1920 | 1 | |
| Klang, Oskar | Oskar Klang | Actor | 1999 | 1 | |
| Klanfer, Sergio | Sergio Klanfer | Video Designer | 2016 | 1 | |
| Klan, Rune | Rune Klan | Actor, Adaptation | 2005 - 2006 | 18 | 4 |
| Klampfer, Brina | Brina Klampfer | Dramaturg | 2019 | 1 | |
| Klamminger, Michaela | Michaela Klamminger | Actor | 2016 | 1 | |
| Klammer, Michael | Michael Klammer | Actor | 2006 - 2008 | 3 | |
| Klami, Ida Cecilie | Ida Cecilie Klami | Actor | 2013 | 1 | |
| Klamburg, Dani | Dani Klamburg | Actor, Composer | 2006 | 14 | |
| Klambatsa, Nansy | Nansy Klambatsa | Actor | 2013 | 1 | |
| Klamar, Natalie | Natalie Klamar | Actor | 2020 - 2023 | 2 | |
| Klam, Walter | Walter Klam | Actor | 1937 - 1966 | 3 | |
| Klakegg, Rune | Rune Klakegg | Musician | 2008 | 2 | |
| Klainer, Sergio | Sergio Klainer | Actor | 1980 - 1994 | 2 | |
| Klahr, Paul | Paul Klahr | Actor | 1901 | 1 | |
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