| Kopera, Dan | Dan Kopera | Designer | 2012 | 1 | |
| Kopernikus, Nicolaj | Nicolaj Kopernikus | Actor | 2006 | 2 | 2 |
| Kopetty, Samuel | Samuel Kopetty | Actor | 1996 - 1997 | 8 | |
| Kopetzki, Mathias | Mathias Kopetzki | Actor | 2004 - 2008 | 30 | |
| Kopf, Berthold | Berthold Kopf | Actor | 1977 | 1 | |
| Kopf, Markus | Markus Kopf | Director | 2017 - 2018 | 5 | |
| Kopilova, Anastasia | Anastasia Kopilova | Designer | 2020 | 1 | |
| Kopischke, Kärin | Kärin Kopischke | Costume Designer | 2004 | 1 | 1 |
| Kopit, Arthur | Arthur Kopit | Translator | 1982 - 2010 | 9 | 1 |
| Kopittke, Sigrid | Sigrid Kopittke | Assistant Director, Costume Designer, Designer | 2018 | 3 | |
| Kopke, Andrew | Andrew Kopke | Actor | 2011 | 1 | |
| Koponen, Kaisu | Kaisu Koponen | Designer | 2013 | 1 | |
| Kopp, Anne | Anne Kopp | Actor | 1996 | 1 | |
| Kopp, Dave | Dave Kopp | Actor | 2002 | 9 | |
| Kopp, David | David Kopp | Actor | 2018 | 1 | |
| Kopp, Elisabeth | Elisabeth Kopp | Actor | 2016 | 1 | |
| Kopp, Erwin | Erwin Kopp | Actor | 1915 | 1 | |
| Kopp, Fred | Fred Kopp | Lighting Designer | 1973 | 1 | |
| Kopp, Katherina | Katherina Kopp | Costume Designer | 2007 | 2 | |
| Kopp, Mila | Mila Kopp | Actor | 1928 - 1956 | 2 | 1 |
| Koppány, Gizella | Gizella Koppány | Costume Designer | 1979 | 1 | |
| Koppe, Jon-Kaare | Jon-Kaare Koppe | Actor | 2009 - 2021 | 6 | 1 |
| Koppel, Einari | Einari Koppel | Actor | 1976 | 1 | |
| Koppel, Herman, D. | Herman D. Koppel | Composer, Conductor | 1964 | 2 | |
| Koppel, Pelle | Pelle Koppel | Dramaturg | 2007 | 1 | |
| Koppel, Tina | Tina Koppel | Director | 2003 | 1 | |
| Köppen, Milli | Milli Köppen | Actor | 1932 | 1 | |
| Köppen, Otto | Otto Köppen | Actor | 1940 | 1 | |
| Koppendorfer, Franz | Franz Koppendorfer | Costume Designer, Designer | 1973 | 2 | |
| Koppenhöfer, Bodo Issel | Bodo Issel Koppenhöfer | Actor | 1972 | 1 | |
| Koppenhöfer, Charlotte | Charlotte Koppenhöfer | Director | 2013 - 2016 | 2 | 1 |
| Koppenhofer, Maria | Maria Koppenhofer | Actor | 1931 | 1 | |
| Kopperl, Helga | Helga Kopperl | Actor | 1975 | 1 | |
| Koppers, Angela | Angela Koppers | Costume Designer | 1987 | 1 | |
| Koppert, Martin | Martin Koppert | Actor | 1985 | 1 | |
| Kopperud, Trond | Trond Kopperud | Composer | 1993 | 12 | |
| Köppke, Margarethe | Margarethe Köppke | Actor | 1920 - 1923 | 3 | |
| Koppler, Dieter | Dieter Koppler | Actor | 1986 | 2 | |
| Koppmann, Angelika | Angelika Koppmann | Actor | 2003 | 3 | |
| Kopraleva, Milena | Milena Kopraleva | Actor | 1995 | 1 | |
| Kopřiva, Ludĕk | Ludĕk Kopřiva | Actor | 1972 | 2 | |
| Koproski, Seth | Seth Koproski | Actor | 2012 | 1 | |
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