| Kopp, Katherina | Katherina Kopp | Costume Designer | 2007 | 2 | |
| Kopp, Fred | Fred Kopp | Lighting Designer | 1973 | 1 | |
| Kopp, Erwin | Erwin Kopp | Actor | 1915 | 1 | |
| Kopp, Elisabeth | Elisabeth Kopp | Actor | 2016 | 1 | |
| Kopp, David | David Kopp | Actor | 2018 | 1 | |
| Kopp, Dave | Dave Kopp | Actor | 2002 | 9 | |
| Kopp, Anne | Anne Kopp | Actor | 1996 | 1 | |
| Koponen, Kaisu | Kaisu Koponen | Designer | 2013 | 1 | |
| Kopke, Andrew | Andrew Kopke | Actor | 2011 | 1 | |
| Kopittke, Sigrid | Sigrid Kopittke | Assistant Director, Costume Designer, Designer | 2018 | 3 | |
| Kopit, Arthur | Arthur Kopit | Translator | 1982 - 2010 | 9 | |
| Kopischke, Kärin | Kärin Kopischke | Costume Designer | 2004 | 1 | |
| Kopilova, Anastasia | Anastasia Kopilova | Designer | 2020 | 1 | |
| Kopf, Markus | Markus Kopf | Director | 2017 - 2018 | 5 | |
| Kopf, Berthold | Berthold Kopf | Actor | 1977 | 1 | |
| Kopetzki, Mathias | Mathias Kopetzki | Actor | 2004 - 2008 | 30 | |
| Kopetty, Samuel | Samuel Kopetty | Actor | 1996 - 1997 | 8 | |
| Kopernikus, Nicolaj | Nicolaj Kopernikus | Actor | 2006 | 2 | 1 |
| Kopera, Dan | Dan Kopera | Designer | 2012 | 1 | |
| Kopera, Ashley | Ashley Kopera | Costume Designer | 2017 | 1 | |
| Köper, Carmen-Renate | Carmen-Renate Köper | Actor | 1953 - 2006 | 6 | |
| Kopelousis, Giorgos | Giorgos Kopelousis | Actor | 1967 | 4 | |
| Kopeinig, Ferdinand | Ferdinand Kopeinig | Actor | 2011 | 1 | |
| Kopečný, Miloš | Miloš Kopečný | Actor | 1993 | 1 | |
| Kopecký, Rudolf | Rudolf Kopecký | Actor | 1941 | 1 | |
| Kopecká, Melanie | Melanie Kopecká | Actor | 1924 | 1 | |
| Kopczewski, Karol | Karol Kopczewski | Actor | 1894 - 1906 | 12 | |
| Kopczewska, Zofia | Zofia Kopczewska | Actor | 1909 - 1910 | 2 | |
| Kopal, Robert | Robert Kopal | Actor | 1906 - 1919 | 2 | |
| Kopae, Kali | Kali Kopae | Actor | 2017 - 2019 | 4 | |
| Kopacz, - | - Kopacz | Actor | 1910 | 1 | |
| Kopáček, Tomáš | Tomáš Kopáček | Actor | 2000 | 1 | |
| Koozehgar, Yasaman | Yasaman Koozehgar | Musician | 2015 | 1 | |
| Koozegar, Ali | Ali Koozegar | | | | |
| Koot, Joke | Joke Koot | Actor | 1984 | 1 | |
| Koot, Ger | Ger Koot | Actor | 1984 | 1 | |
| Kooshk Jalali, Alireza | Alireza Kooshk Jalali | Director, Dramaturg, Translator | 2010 | 3 | |
| Koos, Zsofia | Zsofia Koos | Actor | 1974 | 1 | |
| Koops, Wolfgang | Wolfgang Koops | Actor | 2008 | 1 | |
| Koopmans, Daniel | Daniel Koopmans | Actor | 1984 | 1 | |
| Koopman, Carlus | Carlus Koopman | Lighting Designer | 1987 | 1 | |
| Kooperstein, Maureen | Maureen Kooperstein | Actor | 1973 | 1 | |
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