| Kyrou, Vilma | Vilma Kyrou | Actor | 1978 | 1 | |
| Kaysø, Dick | Dick Kaysø | Actor | 1978 | 1 | |
| Kniest, Sally | Sally Kniest | Actor | 1978 | 1 | |
| Kumenius, Kristoffer | Kristoffer Kumenius | Actor | 1978 | 1 | |
| Kljaić-Radaković, Milica | Milica Kljaić-Radaković | Actor | 1978 | 1 | |
| Kraljev, Miro | Miro Kraljev | Actor | 1978 | 1 | |
| Kučerovski, V. | V. Kučerovski | Actor | 1978 | 1 | |
| Krylov, P. | P. Krylov | Actor | 1978 | 1 | |
| Krasnicki, E. | E. Krasnicki | Actor | 1978 | 1 | |
| Kuter, Kay E. | Kay E. Kuter | Actor | 1978 | 1 | |
| Kochańczyk, Marcel | Marcel Kochańczyk | Designer, Director | 1978 - 1979 | 4 | |
| Kent, Brian | Brian Kent | Actor | 1978 - 1979 | 2 | |
| Kollman, Isabella | Isabella Kollman | Actor | 1978 - 1980 | 3 | |
| Kakiuchi, Norio | Norio Kakiuchi | Designer | 1978 - 1980 | 4 | |
| Kawatsu, Saeko | Saeko Kawatsu | Actor | 1978 - 1980 | 2 | |
| Kjær-Petersen, Viggo | Viggo Kjær-Petersen | Translator | 1978 - 1980 | 2 | |
| Korterink, Thea | Thea Korterink | Actor | 1978 - 1982 | 2 | |
| Karppinen, Salme | Salme Karppinen | Actor | 1978 - 1984 | 3 | |
| Karnil, Eddie | Eddie Karnil | Actor | 1978 - 1984 | 3 | |
| Kamm, Volkmar | Volkmar Kamm | Adaptation, Director | 1978 - 1989 | 5 | |
| Kotamanidou, Eva | Eva Kotamanidou | Actor | 1978 - 1989 | 4 | |
| Klenskaja, Maria | Maria Klenskaja | Actor | 1978 - 1989 | 3 | |
| Karydis, Giannis | Giannis Karydis | Costume Designer, Designer | 1978 - 1990 | 8 | |
| Kun, Tibor | Tibor Kun | Actor | 1978 - 1991 | 2 | |
| Konečný, Emil | Emil Konečný | Actor | 1978 - 1993 | 2 | |
| Kjellsby, Jorunn | Jorunn Kjellsby | Actor | 1978 - 1995 | 3 | 1 |
| Kawamori, Shigeo | Shigeo Kawamori | Costume Designer | 1978 - 1995 | 5 | |
| Keller, Astrid | Astrid Keller | Actor | 1978 - 1998 | 3 | |
| Kløvig, Eyolf Soot | Eyolf Soot Kløvig | Actor | 1978 - 2000 | 14 | 1 |
| Kyriakaki-Loukissa, Olympia | Olympia Kyriakaki-Loukissa | Musical Director | 1978 - 2002 | 2 | |
| Kodama, Taiji | Taiji Kodama | Actor | 1978 - 2003 | 6 | |
| Knutsen, Arne | Arne Knutsen | Actor | 1978 - 2006 | 6 | |
| Kreismann, Kersti | Kersti Kreismann | Actor | 1978 - 2010 | 6 | 1 |
| Kydland, Anne Jorunn | Anne Jorunn Kydland | Actor, Costume Designer, Designer, Director, Sound Designer | 1978 - 2013 | 7 | |
| Kalsås, Kim | Kim Kalsås | Actor | 1978 - 2014 | 67 | 1 |
| Kippersund, Inga Live | Inga Live Kippersund | Actor, Choreographer | 1978 - 2019 | 5 | |
| Kim, Randall, Duk | Randall Duk Kim | Actor | 1978 - 2019 | 2 | 1 |
| Kerschbaumer, Michael | Michael Kerschbaumer | Actor | 1979 | 1 | |
| Kokot, Dragica | Dragica Kokot | Actor | 1979 | 1 | |
| Kemps, Niek | Niek Kemps | Costume Designer, Designer | 1979 | 2 | |
| Kerschbaumer, Hans-Peter | Hans-Peter Kerschbaumer | Actor | 1979 | 1 | |
| Kurent, Andrej | Andrej Kurent | Actor | 1979 | 2 | |
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