| Klaudius, Fritz | Fritz Klaudius (Fritz Klaudius) | Actor | 1927 | 1 | |
| Klau-Emken, Dieter | Dieter Klau-Emken | Actor | 2006 | 1 | |
| Klatt, Herbert B. | Herbert B. Klatt (Herbert B. Klatt) | Actor | 1938 | 1 | |
| Klata, Jan | Jan Klata | Director | 2015 - 2016 | 10 | |
| Klasson, Ida Marianne Vassbotn | Ida Marianne Vassbotn Klasson (Ida Marianne Vassbotn Klasson) | Actor | 2003 - 2013 | 5 | |
| Klassina, Tatjana | Tatjana Klassina | Actor | 2001 | 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 (Michael Klashman) | Actor | 1994 | 1 | |
| Klas, Eri | Eri Klas | Conductor | 1992 | 1 | |
| Klarwein, Franz | Franz Klarwein | Actor | 1952 | 1 | |
| Klarskov, Paul | Paul Klarskov (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 (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 (Gyula Klaniczay) | Actor | 1920 | 1 | |
| Klang, Oskar | Oskar Klang (Oskar Klang) | Actor | 1999 | 1 | |
| Klan, Rune | Rune Klan | Actor, Adaptation | 2005 - 2006 | 18 | 3 |
| 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 (Ida Cecilie Klami) | Actor | 2013 | 1 | |
| Klamburg, Dani | Dani Klamburg (Dani Klamburg) | Actor, Composer | 2006 | 14 | |
| Klambatsa, Nansy | Nansy Klambatsa | Actor | 2013 | 1 | |
| Klamar, Natalie | Natalie Klamar | Actor | 2020 | 1 | |
| Klam, Walter | Walter Klam (Walter Klam) | Actor | 1937 - 1966 | 3 | |
| Klakegg, Rune | Rune Klakegg (Rune Klakegg) | Musician | 2008 | 2 | |
| Klainer, Sergio | Sergio Klainer | Actor | 1980 - 1994 | 2 | |
| Klahr, Paul | Paul Klahr | Actor | 1901 | 1 | |
| Klafstad, Ingebjørg | Ingebjørg Klafstad (Ingebjørg Klafstad) | Actor | 1901 | 1 | |
| Klafft, Hugo | Hugo Klafft (Hugo Klafft) | Actor, Director | 1925 - 1931 | 4 | |
| Klaffke, Jakob, Johannes | Jakob Johannes Klaffke | Actor | 1993 | 1 | |
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