| Kovačević, Eržika | Eržika Kovačević | Actor | 1956 - 1972 | 2 | |
| Kazarska, Stefka | Stefka Kazarska | Actor | 1956 - 1971 | 2 | |
| Kayssler, Christine | Christine Kayssler | Actor | 1956 - 1971 | 2 | |
| Kaplanová, Valerie | Valerie Kaplanová | Actor | 1956 - 1967 | 3 | 1 |
| Kothe, Manfred | Manfred Kothe | Actor | 1956 - 1966 | 2 | |
| Knaus, Walter | Walter Knaus | Director | 1956 - 1965 | 2 | 1 |
| Koch, Eik | Eik Koch | Actor, Director | 1956 - 1964 | 2 | |
| Karsten, Fred | Fred Karsten | Actor | 1956 - 1963 | 3 | |
| Kaps-Zurmahr, Helmut | Helmut Kaps-Zurmahr | Actor | 1956 - 1959 | 2 | |
| Kreihanslová, Hana | Hana Kreihanslová | Actor | 1956 - 1958 | 2 | 1 |
| Knoop, Eva | Eva Knoop | Actor | 1956 - 1957 | 28 | |
| Kesster, Magnus | Magnus Kesster | Actor | 1956 | 1 | |
| Klotz, Hilde | Hilde Klotz | Actor | 1956 | 1 | |
| Koch-Hooge, Wilhelm | Wilhelm Koch-Hooge | Actor | 1956 | 1 | |
| Koutoukas, H.M. | H. M. Koutoukas (H.M. Koutoukas) | Actor | 1956 | 1 | |
| Keller, Jan | Jan Keller | Director | 1956 | 1 | 1 |
| Kantardzhiev, Nikola | Nikola Kantardzhiev | Composer | 1956 | 1 | |
| Karamitev, Apostol | Apostol Karamitev | Actor | 1956 | 1 | |
| Kropff, Joop | Joop Kropff | Costume Designer, Designer | 1956 | 2 | |
| Köhler, Annemarie | Annemarie Köhler | Costume Designer | 1956 | 1 | |
| Klose, Marte | Marte Klose | Actor | 1956 | 1 | |
| Kuttin, Aloyis | Aloyis Kuttin | Actor | 1956 | 1 | |
| Kazerouni, Morteza | Morteza Kazerouni | Actor | 1956 | 1 | |
| Katsadramis, Thodoros | Thodoros Katsadramis | Actor | 1956 | 2 | |
| Konstantinovic, Dragica | Dragica Konstantinovic | Actor | 1956 | 1 | |
| Ketchum, Jerald | Jerald Ketchum | Actor | 1956 | 1 | |
| Krohn, Alfred | Alfred Krohn | Actor | 1956 | 1 | 1 |
| Kunze, Irmgard | Irmgard Kunze | Actor | 1956 | 1 | 1 |
| Kollmann, Ingeborg | Ingeborg Kollmann | Actor, Dancer | 1956 | 2 | |
| Kanzler, Heinz | Heinz Kanzler | Dancer | 1956 | 1 | |
| Kraushaar, Dieter | Dieter Kraushaar | Dancer | 1956 | 1 | |
| Kammers, Hanna | Hanna Kammers | Choreographer | 1956 | 1 | |
| Kudelász, Károly | Károly Kudelász | Designer | 1956 | 1 | |
| Kudelász, Barna | Barna Kudelász | Actor | 1956 | 1 | |
| Klevenov, Heinz | Heinz Klevenov | Actor | 1956 | 1 | |
| Knoop, Nell | Nell Knoop | Actor | 1956 | 1 | |
| Kelling, Coba | Coba Kelling | Actor | 1956 | 5 | |
| Kankainen, Topi | Topi Kankainen | Actor | 1956 | 1 | |
| Kleiber, Walter | Walter Kleiber | Dancer | 1956 | 2 | |
| Kaltenbach, Rolf | Rolf Kaltenbach | Dancer | 1956 | 1 | |
| Kaindl, Fredy | Fredy Kaindl | Dancer | 1956 | 1 | |
| Koschel, Uwe | Uwe Koschel | Actor | 1956 | 1 | |
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