| Kibenick, Henry | Henry Kibenick | Actor | 1888 - 1901 | 7 | |
| Klára, Tompa | Tompa Klára | Actor | 1905 - 2010 | 7 | 8 |
| Kaalstad, Nils Jørgen | Nils Jørgen Kaalstad | Actor | 1992 - 2024 | 7 | |
| Klausen, Sigurd Aae | Sigurd Aae Klausen | Actor, Director | 1994 - 2011 | 7 | |
| Kirchleitner, Lydia | Lydia Kirchleitner | Costume Designer | 2006 - 2019 | 7 | |
| Knutzen, Christian | Christian Knutzen | Actor | 1871 | 7 | |
| Klausen, Elisabeth | Elisabeth Klausen | Actor | 1873 - 1908 | 7 | 1 |
| Key, Gustaf | Gustaf Emil Key | Actor | 1876 - 1879 | 7 | 1 |
| Klefberg, Hilda | Hilda Klefberg | Actor | 1879 - 1895 | 7 | 1 |
| Kutschera, Viktor | Viktor Kutschera | Actor | 1890 - 1928 | 7 | 1 |
| Krüger, Mr. | Mr. Krüger | Actor, Designer, Director | 1892 - 1908 | 7 | |
| Knake-Zawadzki, Stanisław | Stanisław Knake-Zawadzki | Actor | 1894 - 1911 | 7 | |
| Klein, Josef | Josef Klein | Actor | 1897 - 1910 | 7 | |
| Klein, Julius | Julius Klein | Designer | 1906 - 1916 | 7 | |
| Kiesau, Georg | Georg Kiesau | Actor, Director | 1914 - 1938 | 7 | 1 |
| Krauß, Ingo | Ingo Krauß | Actor, Director | 1906 - 1922 | 7 | |
| Kennedy, Mela | Mela Kennedy | Actor | 1909 - 1929 | 7 | |
| Kramm, Charlotte | Charlotte Kramm | Actor | 1921 - 1966 | 7 | 1 |
| Kaiser, Cläre | Cläre Kaiser | Actor | 1933 - 2006 | 7 | |
| Kolander, Friedrich | Friedrich Kolander | Actor | 1934 - 1961 | 7 | |
| Komissarzhevskaya, Vera F. | Ве́ра Фё́доровна Комиссарже́вская (Vera F. Komissarzhevskaya) | Actor, Producer | 1904 - 1908 | 7 | 14 |
| Knudsen, Ranka | Ranka Knudsen | Actor | 1908 - 1940 | 7 | 1 |
| Kiran, Stein | Stein Kiran | Actor | 1994 - 2019 | 7 | |
| Kydland, Anne Jorunn | Anne Jorunn Kydland | Actor, Costume Designer, Designer, Director, Sound Designer | 1978 - 2013 | 7 | |
| Krogsrud, Dagfinn | Dagfinn Krogsrud | Actor | 1995 - 2007 | 7 | |
| Kjorstad, Guro | Guro Kjorstad | Actor | 2001 - 2007 | 7 | |
| Kroken, Asbjørn | Asbjørn Kroken | Actor | 2005 - 2007 | 7 | |
| Kramer, Vagn | Vagn Kramer | Actor | 1914 - 2003 | 7 | |
| Kerr, Jarvis | Jarvis Kerr | Actor | 1926 - 1927 | 7 | |
| Kafkaridis, Stelios | Stelios Kafkaridis | Actor | 1974 | 7 | |
| Karantinos, Sokratis | Sokratis Karantinos | Director | 1974 | 7 | |
| Kröger, Ruth Marie | Ruth Marie Kröger | Actor | 2000 - 2007 | 7 | 1 |
| Keidser, Willy | Willy Keidser | Actor | 1949 - 1976 | 7 | |
| Klinger, Charlotte | Charlotte Klinger | Actor | 1960 - 1982 | 7 | |
| Koutrakis, Stratos | Stratos Koutrakis | Lighting Designer | 1988 - 2006 | 7 | |
| Kesten, Peter | Peter Kesten | Director | 2008 - 2009 | 7 | |
| Kapelonis, Kostis | Kostis Kapelonis | Director | 2002 - 2010 | 7 | 1 |
| Konakchiiska, Veselina | Veselina Konakchiiska | Actor | 2010 - 2012 | 7 | 6 |
| Karow, Reinhard | Reinhard Karow | Actor | 1985 - 2002 | 7 | |
| Kristensen, Jeppe | Jeppe Kristensen | Director | 2014 - 2016 | 7 | 1 |
| Krug, Ines | Ines Krug | Actor | 1991 - 2006 | 7 | |
| Kuhn, Hans Peter | Hans Peter Kuhn | Composer, Sound Designer | 1991 - 1993 | 7 | |
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