| Kjennseth, Annfrid, | Annfrid Kjennseth | Actor | 1998 - 2007 | 14 | |
| Kvalbein, Scott Maurstad, | Scott Maurstad Kvalbein (Scott Maurstad Kvalbein) | Actor | 1998 | 2 | |
| Kindahl, John, | John Kindahl | Mask Maker | 1998 | 1 | |
| Kramm, Ilse, | Ilse Kramm | Actor | 1965 - 2006 | 35 | |
| Kierulf, Heidi, | Heidi Kierulf | Actor | 1999 | 4 | |
| Kjølberg, Andreas, | Andreas Kjølberg | Actor | 1999 | 1 | |
| Kromvoll, Espen, | Espen Kromvoll | Actor | 1999 - 2000 | 4 | |
| Kolloen, Silje Kristine, | Silje Kristine Kolloen | Actor | 1999 | 2 | |
| Krog, Frank, | Frank Krog | Actor | 1999 | 1 | |
| Krogh, Marianne, | Marianne Krogh | Actor | 1981 - 2002 | 3 | |
| Koroly, Charles, | Charles Koroly | Costume Designer, Designer, Sound Designer | 1999 - 2014 | 8 | |
| Kalsås, Kim, | Kim Kalsås | Actor | 1978 - 2014 | 67 | |
| Kirkman, Erik, | Erik Kirkman | Actor | 2000 | 1 | |
| Kjorstad, Eivind, | Eivind Kjorstad | Actor | 2000 - 2007 | 4 | |
| Kleiva, Anna, | Anna Kleiva | Actor | 2000 - 2006 | 14 | |
| Kongshaug, Jesper, | Jesper Kongshaug | Lighting Designer | 1981 - 2006 | 12 | |
| Kristiansen, Petter Width, | Petter Width Kristiansen | Actor | 2000 - 2015 | 21 | |
| Kluften, Tonny, | Tonny Kluften | Composer | 2001 | 1 | |
| Kjorstad, Guro, | Guro Kjorstad | Actor | 2001 - 2007 | 7 | |
| Kjorstad, Ola, | Ola Kjorstad | Actor | 2001 - 2005 | 5 | |
| Kosmo, Ingebjørg, | Ingebjørg Kosmo | Actor | 2001 - 2014 | 9 | |
| Kittang, Jorill, | Jorill Kittang | Actor | 2001 | 1 | |
| Krogsæther, Linda, | Linda Krogsæther | Actor | 2001 | 2 | |
| Kullerud, Per, | Per Kullerud | Actor | 2002 | 2 | |
| Kyllo, Ole Martin, | Ole Martin Kyllo | Actor | 2002 | 2 | |
| Koldal, Britt, | Britt Koldal | Costume Designer | 2002 | 3 | |
| Kjøs, Sara, | Sara Kjøs | Actor | 2002 | 2 | |
| Kielland-Gyrud, Halvor, | Halvor Kielland-Gyrud | Actor | 2002 | 1 | |
| Kjørven, Martha, | Martha Kjørven | Actor | 2002 - 2003 | 3 | |
| Kjeldstadli, Mari Vatne, | Mari Vatne Kjeldstadli | Adaptation, Director, Dramaturg | 2003 - 2019 | 12 | |
| Kristoffersen, Ingunn , | Ingunn Kristoffersen | Actor | 2003 - 2008 | 3 | |
| Keelan, Kristel, | Kristel Keelan | Actor | 2003 | 1 | |
| Knutsen, Aleksander, | Aleksander Knutsen | Actor | 2003 | 1 | |
| Klasson, Ida Marianne Vassbotn, | Ida Marianne Vassbotn Klasson | Actor | 2003 - 2013 | 5 | |
| Knudsen, Kaja, | Kaja Knudsen | Actor | 2003 | 2 | |
| Knudsen, Hanna, | Hanna Knudsen | Actor | 2003 | 2 | |
| Klausen, Kjell, | Kjell Klausen | Director | 2003 | 1 | |
| Kjersem, Irina, | Irina Kjersem | Costume Designer | 2004 | 1 | |
| Kennedy, Joseph B., | Joseph B. Kennedy (Joseph B. Kennedy) | Designer | 2004 - 2006 | 23 | |
| Køhn, Rosemarie, | Rosemarie Køhn | Actor | 2005 - 2006 | 2 | |
| Kroken, Asbjørn, | Asbjørn Kroken | Actor | 2005 - 2007 | 7 | |
| Krüger, Karoline, | Karoline Krüger | Actor | 2006 - 2018 | 42 | |
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