| König, Nina | Nina König | Mask Maker | 2014 - 2015 | 2 | |
| Kalogeropoulos, Nikos | Nikos Kalogeropoulos | Actor | 1984 - 1985 | 2 | |
| Koci, Josef | Josef Koci | Actor | 1982 - 1987 | 2 | |
| Križaj, Franci | Franci Križaj | Director | 1970 - 1986 | 2 | |
| Kidd, Stephen | Stephen Kidd | Actor | 1987 | 2 | |
| Kaftan, Bernd | Bernd Kaftan | Actor | 1987 - 1996 | 2 | |
| Kammer, Nancy-Elizabeth | Nancy-Elizabeth Kammer | Actor | 1990 - 2019 | 2 | 1 |
| Keeler, Dana | Dana Keeler | Actor | 1982 - 1990 | 2 | 1 |
| Klein, Katrin | Katrin Klein | Actor | 1990 - 1997 | 2 | 1 |
| Karanth, B.V. | B.V. Karanth | Composer | 1995 | 2 | |
| Knecht, Günter | Günter Knecht | Actor | 1987 - 1999 | 2 | |
| Kothe, Peter | Peter Kothe | Costume Designer, Designer | 1987 | 2 | |
| Knight, Lily | Lily Knight | Actor | 1984 - 1995 | 2 | 1 |
| Klugt, Niko van der | Niko van der Klugt | Designer, Lighting Designer | 1991 | 2 | |
| Klugt, Nathalie, van der | Nathalie van der Klugt | Actor | 1991 | 2 | |
| Kirk, Jeffrey | Jeffrey Kirk | Dancer | 1989 - 1990 | 2 | 1 |
| Klement, Susanne | Susanne Klement | Dancer | 1989 - 1990 | 2 | |
| Kritzinger, Johannes | Johannes Kritzinger | Dancer | 1989 - 1990 | 2 | |
| Kautek, Rudolf | Rudolf Kautek | Director | 1966 - 1988 | 2 | |
| Keith, Warren | Warren Keith | Actor | 1988 - 2003 | 2 | |
| Kerr, Patrick | Patrick Kerr | Actor | 1988 - 2006 | 2 | 2 |
| Křenek, Emanuel | Emanuel Křenek | Actor | 1965 - 1988 | 2 | |
| Kiefel, Russell | Russell Kiefel | Actor | 1988 - 1989 | 2 | 1 |
| Kvietik, Štefan | Štefan Kvietik | Actor | 1972 - 1990 | 2 | 1 |
| Kevin, Michael | Michael Kevin | Actor | 1990 | 2 | |
| Kremer, Dan | Dan Kremer | Actor | 1990 - 2002 | 2 | |
| Klánová, Eva | Eva Klánová | Actor | 1991 | 2 | |
| Körtvélyessy, Zsolt | Zsolt Körtvélyessy | Actor | 1967 - 1991 | 2 | |
| Kun, Tibor | Tibor Kun | Actor | 1978 - 1991 | 2 | |
| Kaps-Zurmahr, Helmut | Helmut Kaps-Zurmahr | Actor | 1956 - 1959 | 2 | |
| Kurš, Antonín | Antonín Kurš | Director | 1939 - 1956 | 2 | |
| Kropff, Joop | Joop Kropff | Costume Designer, Designer | 1956 | 2 | |
| Klopfstock, Susanne | Susanne Klopfstock | Costume Designer, Designer | 1992 | 2 | |
| Keuchel, Jürgen-Helmut | Jürgen-Helmut Keuchel | Actor, Adaptation | 1992 - 2015 | 2 | |
| Kwiatkowska, Tatiana | Tatiana Kwiatkowska | Costume Designer | 1991 - 1997 | 2 | |
| Katz, Natasha | Natasha Katz | Lighting Designer | 1992 - 2009 | 2 | |
| Kemp, Brian | Brian Kemp | Actor | 1992 | 2 | |
| Kingshott, Dennis | Dennis Kingshott | Lighting Designer | 1992 | 2 | |
| Kamnert, Kristina | Kristina Kamnert | Actor | 1992 - 1994 | 2 | 1 |
| Kötz, Franziska | Franziska Kötz | Dramaturg | 1992 - 2006 | 2 | 1 |
| Kummerow, Irmgard | Irmgard Kummerow | Actor | 1989 - 1991 | 2 | |
| Koschel, Uta | Uta Koschel | Actor | 1991 - 1993 | 2 | |
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