| Kettler, Liselott | Liselott Kettler | Actor | 1950 - 1966 | 3 | |
| Krause, Hans-Henrik | Hans-Henrik Krause | Actor | 1950 - 1985 | 2 | |
| Kulle, Jarl | Jarl Kulle | Actor | 1950 - 1994 | 2 | 1 |
| Krook, Margaretha | Margaretha Krook | Actor | 1950 - 1997 | 9 | 1 |
| Kjellson, Ingvar | Ingvar Kjellson | Actor | 1950 - 2004 | 14 | 1 |
| Kumke, Jutta | Jutta Kumke | Actor | 1951 | 1 | |
| Kerlogue, Robert | Robert Kerlogue | Actor | 1951 | 1 | |
| Kirkman, Don | Don Kirkman | Actor | 1951 | 1 | |
| Kramer, Monroe | Monroe Kramer | Actor | 1951 | 1 | |
| Kralj, Elvira | Elvira Kralj | Actor | 1951 | 1 | |
| Koschka, Julia | Julia Koschka | Actor | 1951 | 1 | |
| Keddy, Erich | Erich Keddy | Actor | 1951 | 1 | |
| Karder, Magda | Magda Karder | Choreographer | 1951 | 1 | |
| Krings, Willy | Willy Krings | Actor | 1951 | 1 | |
| Krollmann, Karl | Karl Krollmann | Actor | 1951 | 1 | |
| Kurth, Henry | Henry Kurth | Designer, Lighting Designer | 1951 | 2 | |
| Kane, Wyman | Wyman Kane | Actor | 1951 | 1 | |
| Kammerer, Marcella | Marcella Kammerer | Actor | 1951 - 1952 | 2 | |
| Katz, Bernice | Bernice Katz | Actor | 1951 - 1952 | 2 | |
| Kraus, Sidney | Sidney Kraus | Actor | 1951 - 1952 | 2 | |
| Koch, Erika | Erika Koch | Costume Designer | 1951 - 1953 | 2 | |
| Kennedy, George | George Kennedy | Actor | 1951 - 1958 | 2 | |
| Keim-Strauß, Anni | Anni Keim-Strauß | Costume Designer | 1951 - 1962 | 2 | |
| Knoop, Gerhard | Gerhard Knoop | Actor, Director | 1951 - 1991 | 129 | 1 |
| Kačič, Mila | Mila Kačič | Actor | 1951 - 1991 | 2 | |
| Kirton, George | George Kirton | Actor | 1952 | 1 | |
| Kerpen, Lori | Lori Kerpen | Actor | 1952 | 2 | |
| Koelliker, Werner | Werner Koelliker | Actor | 1952 | 1 | |
| Knüppel, Emmi | Emmi Knüppel | Actor | 1952 | 1 | |
| Kosjek, Anita | Anita Kosjek | Actor | 1952 | 1 | |
| Kontrabecki, John | John Kontrabecki | Actor | 1952 | 1 | |
| Kostantaras, Lampros | Lampros Kostantaras | Actor | 1952 | 1 | |
| Kogel, Richard | Richard Kogel | Actor | 1952 | 1 | |
| Klarwein, Franz | Franz Klarwein | Actor | 1952 | 1 | |
| Kaussen, Peter | Peter Kaussen | Actor | 1952 | 1 | |
| Küfner, Gretl | Gretl Küfner | Actor | 1952 | 1 | |
| Keys, Patsy | Patsy Keys | Actor | 1952 | 1 | |
| Kerszt, Alexander | Alexander Kerszt | Actor | 1952 | 1 | |
| Kritl, Karl | Karl Kritl | Actor | 1952 | 1 | |
| Kirjavainen, Kalle | Kalle Kirjavainen | Actor | 1952 | 1 | |
| Korsholm, Gisela | Gisela Korsholm | Actor | 1952 - 1954 | 2 | |
| Kossowsky, Jorge | Jorge Kossowsky | Assistant Director, Director | 1952 - 1956 | 3 | |
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