| Kloster, Ragna | Ragna Kloster | Actor, Choreographer, Dancer | 1928 | 3 | |
| Klostermann, Elisabeth, | Elisabeth Klostermann | Actor | 1921 | 1 | |
| Klostermeier, Anneli | Anneli Klostermeier | Dramaturg | 2002 | 1 | |
| Klotsche, Martina | Martina Klotsche | Actor | 1981 | 1 | |
| Klott, Julius | Julius Klott | Actor | 1901 | 1 | |
| Klotz, Adolf, | Adolf Klotz | Actor | 1916 | 1 | |
| Klotz, Florence | Florence Klotz | Costume Designer | 1982 | 1 | |
| Klotz, Hilde, | Hilde Klotz | Actor | 1956 | 1 | |
| Klotz, Klara | Klara Klotz | Actor | 1954 | 1 | |
| Klotz, Mr., | Mr. Klotz | Actor | 1886 - 1889 | 2 | |
| Klötzke, Ernst, August | Ernst August Klötzke | Musical Director, Musician | 2008 | 2 | |
| Kloukinas, Michalis | Michalis Kloukinas | Designer | 2020 | 1 | |
| Klouman, Borghild | Borghild Klouman | Actor | 1928 - 1931 | 9 | |
| Klouman, Karin, | Karin Klouman | Actor | 2011 | 1 | |
| Klouman, Thoralf, | Thoralf Klouman | Actor | 1911 - 1931 | 13 | |
| Klouman, Wenche | Wenche Klouman | Actor | 1942 | 1 | |
| Klovholt , Anne Regine | Anne Regine Klovholt | Adaptation, Designer, Director | 2004 - 2005 | 15 | |
| Kløvig, Eyolf Soot, | Eyolf Soot Kløvig | Actor | 1978 - 2000 | 14 | |
| Kløvstad, Einar, | Einar Kløvstad | Actor | 1994 | 1 | |
| Kløvtvedt, Kaare | Kaare Kløvtvedt | Actor | 1962 - 1963 | 58 | |
| Klubal, Anton, | Anton Klubal | Actor | 1940 | 1 | |
| Klubertanz, Carl Heinz, | Carl Heinz Klubertanz | Actor, Director | 1937 - 1938 | 8 | |
| Klubowicz, Marta | Marta Klubowicz | Actor | 2002 | 2 | |
| Klučka, Radovan | Radovan Klučka | Actor | 2010 - 2011 | 15 | 1 |
| Klucke, Einhard | Einhard Klucke | Actor | 2004 | 1 | |
| Kluften, Tonny, | Tonny Kluften | Composer | 2001 | 1 | |
| Klug, Lili, | Lili Klug | Actor | 1897 | 1 | |
| Klug, Ms., | Ms. Klug | Actor | 1895 | 1 | |
| Kluga, Raymond M. | Raymond M. Kluga | Costume Designer | 1981 | 1 | |
| Kluge, Erna, | Erna Kluge | Actor | 1922 | 1 | |
| Kluger, Daniel | Daniel Kluger | Composer, Sound Designer | 2016 - 2020 | 3 | |
| Klugman, Cecilia | Cecilia Klugman | Sound Designer | 2007 | 1 | |
| Klugt, Nathalie, van der | Nathalie van der Klugt | Actor | 1991 | 2 | |
| Klugt, Niko van der | Niko van der Klugt | Designer, Lighting Designer | 1991 | 2 | |
| Klühe, Erich, | Erich Klühe | Actor | 1919 - 1920 | 2 | |
| Kluht, Caroline | Caroline Kluht | Actor | 1961 | 1 | |
| Klumparová, Kateřina | Kateřina Klumparová | Actor | 1968 | 1 | |
| Klumpf, Andreas | Andreas Klumpf | Actor | 2004 - 2007 | 3 | |
| Klünder, Ingo | Ingo Klünder | Actor | 2006 - 2007 | 2 | |
| Klunis, Tom | Tom Klunis | Actor | 1983 | 1 | |
| Klüpfel, Ariane | Ariane Klüpfel | Actor | 2001 | 4 | |
| Klupp, Robert, | Robert Klupp | Actor | 1912 - 1924 | 2 | |
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