| Kloiber, Susanne | Susanne Kloiber | Costume Designer | 1981 - 1996 | 3 | |
| Kelly, P., J. | P. J. Kelly | Actor | 1927 | 1 | |
| King, George | George King | Actor | 1927 | 1 | |
| Košič, Milan | Milan Košič | Actor | 1928 | 1 | |
| Kremer, Cisca | Cisca Kremer | Actor | 1928 | 1 | |
| Kane, Whitford | Whitford Kane | Actor, Director | 1928 | 2 | |
| Krug, Katherine | Katherine Krug | Actor | 1928 - 1929 | 3 | |
| Kelly, E., I. | E. I. Kelly | Actor | 1928 | 1 | |
| Keil-Möller, Carlo | Carlo Keil-Möller | Actor | 1928 | 1 | |
| Kristen, Erika | Erika Kristen | Actor | 1916 - 1925 | 5 | |
| Kloster, Ragna | Ragna Kloster | Actor, Choreographer, Dancer | 1928 | 3 | |
| Koht, Kate | Kate Koht | Actor | 1928 | 1 | |
| Koht, Aagot | Aagot Koht | Actor | 1928 | 1 | |
| Knudsen, Svanhild | Svanhild Knudsen | Actor | 1928 | 1 | |
| Klever, Getten | Getten Klever | Actor | 1928 | 1 | |
| Kytö, Kaarlo | Kaarlo Kytö | Actor | 1928 | 2 | |
| Kivi, Tuure | Tuure Kivi | Actor | 1928 | 1 | |
| Korhonen, Ossi | Ossi Korhonen | Actor | 1928 - 1930 | 3 | |
| Kolberg, Kåre | Kåre Kolberg | Composer | 1981 - 1997 | 2 | |
| Kusuda, Kiyoshi | Kiyoshi Kusuda | Actor | 1928 | 1 | |
| Konstantinou, Nina | Nina Konstantinou | Actor | 1928 | 1 | |
| Klints, Anta | Anta Klints | Actor | 1928 | 1 | |
| Knoke, Ralf | Ralf Knoke | Actor | 1983 | 1 | |
| Knudsen, Laddie | Laddie Knudsen | Actor | 1929 | 1 | |
| Klewer, Emil | Emil Klewer | Actor | 1929 | 1 | |
| Kavanaugh, Clarence | Clarence Kavanaugh | Actor | 1929 | 1 | |
| King, Douglas | Douglas King | Actor | 1929 | 1 | |
| Krause, Gertrud | Gertrud Krause | Actor | 1912 | 1 | |
| Kristen-von Hopffgarten, Erika | Erika Kristen von Hopffgarten | Actor | 1929 | 2 | |
| Kinch, Martin | Martin Kinch | Actor, Director | 1967 - 1973 | 4 | |
| Kinch, Miro | Miro Kinch | Designer | 1972 - 1973 | 2 | |
| Kotanen, Ed | Ed Kotanen | Designer | 1972 | 1 | |
| Kreppel, Herbert | Herbert Kreppel | Director | 1966 - 1972 | 2 | |
| Kiesler, Walter | Walter Kiesler | Actor | 1972 | 1 | |
| Kappel, Günter | Günter Kappel | Costume Designer | 1956 - 1985 | 3 | |
| Kokkakis, Kostas | Kostas Kokkakis | Actor | 1972 - 1990 | 4 | |
| Kanakis, Vasilis | Vasilis Kanakis | Actor | 1964 - 1990 | 4 | |
| Kremel, Joaquín | Joaquín Kremel | Actor | 1983 | 1 | |
| Krähe, Julius | Julius Krähe | Actor | 1901 | 1 | |
| König, Hans | Hans König | Actor | 1921 - 1933 | 3 | |
| Knickrehm, Julie | Julie Knickrehm | Actor | 1972 | 1 | |
| Kohn, Renate | Renate Kohn | Actor | 1972 | 1 | |
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