| Krastiņa, Alda | Alda Krastiņa | Actor | 1979 | 1 | |
| Kull, Elle | Elle Kull | Actor | 1978 | 3 | |
| Klenskaja, Maria | Maria Klenskaja | Actor | 1978 | 2 | |
| Kibuspuu, Urmas | Urmas Kibuspuu | Actor | 1978 | 4 | |
| Kvaale, Olav | Olav Kvaale | Actor | 1978 | 1 | |
| Kneebone, Tom | Tom Kneebone | Actor | 1978 | 1 | |
| Kim, Randall, Duk | Randall Duk Kim | Actor | 1978 - 2019 | 2 | |
| Kato, Go | Go Kato | Actor | 1978 | 2 | |
| Kato, Kazuo | Kazuo Kato | Actor | 1978 | 1 | |
| Krättli, Oliver | Oliver Krättli | Actor | 1978 | 1 | |
| Kelleher, Dorothy | Dorothy Kelleher | Actor | 1978 | 1 | |
| Kullberg, Frk. | Frk. Kullberg | Actor | 1878 - 1879 | 2 | |
| Kapitsinea, Pitsa | Pitsa Kapitsinea | Actor | 1978 | 1 | |
| Kyrou, Vilma | Vilma Kyrou | Actor | 1978 | 1 | |
| Kaysø, Dick | Dick Kaysø | Actor | 1978 | 1 | |
| Käbisch, Anatol | Anatol Käbisch | Actor | 2017 | 1 | |
| Kruß, Jochen | Jochen Kruß | Actor | 2017 | 1 | |
| Keo, Tim | Tim Keo | Actor | 2017 | 1 | |
| Kolis, Rachel, Lee | Rachel Lee Kolis | Actor | 2017 | 1 | |
| Kopae, Kali | Kali Kopae | Actor | 2017 - 2019 | 4 | |
| Knight, Steven, Guire | Steven Guire Knight | Actor | 2017 | 1 | |
| Keller, Hannah Mary | Hannah Mary Keller | Actor | 2017 | 1 | |
| Kianfar, Sediqeh | Sediqeh Kianfar | Actor | 1998 - 2017 | 2 | |
| Kniest, Sally | Sally Kniest | Actor | 1978 | 1 | |
| Kumenius, Kristoffer | Kristoffer Kumenius | Actor | 1978 | 1 | |
| Kabaktschiev, Ljubomir | Ljubomir Kabaktschiev | Actor | 1980 | 1 | |
| Krause, W. | W. Krause | Actor | 1980 | 1 | |
| Köhlhofer, C. | C. Köhlhofer | Actor | 1980 | 2 | |
| Kanev, Kantscho | Kantscho Kanev | Actor | 1980 | 1 | |
| Kaçmaz, Ayten | Ayten Kaçmaz (Ayten Kacmaz) | Actor | 1960 | 1 | |
| Königshoven, Stefan | Stefan Königshoven | Actor | 1981 | 2 | |
| Kilroy, Colette | Colette Kilroy | Actor | 1981 | 1 | |
| Kaufman, Samantha | Samantha Kaufman | Actor | 2015 | 1 | |
| Kyriakou, Eirini | Eirini Kyriakou | Actor | 2016 - 2017 | 2 | |
| Kavvadas, Nikos | Nikos Kavvadas | Actor | 1981 | 10 | |
| Kostova, Anna | Anna Kostova | Actor | 1983 | 1 | |
| Kabaivanova, Blagovesta | Blagovesta Kabaivanova | Actor | 1983 | 1 | |
| Kouros, Nikos | Nikos Kouros | Actor | 1984 | 1 | |
| Katevas, Ilias | Ilias Katevas | Actor | 1984 | 1 | |
| Kanetake, Kimiko | Kimiko Kanetake | Actor | 1984 | 1 | |
| Karstedt, Günther | Günther Karstedt | Actor | 1984 | 1 | |
| Körner, Hans-Peter | Hans-Peter Körner | Actor | 1984 | 1 | |
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