| Krūmiņa, Olga | Olga Krūmiņa (Olga Krūmiņa) | Actor | 1950 | 1 | |
| Kingsley, Ariel | Ariel Kingsley (Ariel Kingsley) | Actor | 1904 | 1 | |
| Khokon, Nasirul Haque | Nasirul Haque Khokon (Nasirul Haque Khokon) | Lighting Designer | 2001 - 2002 | 2 | |
| Kibenick, Henry | Henry Kibenick (Henry Kibenick) | Actor | 1888 - 1901 | 7 | |
| Karim, Mesbaul | Mesbaul Karim (Mesbaul Karim) | Actor | 2000 - 2008 | 8 | |
| Kibria, Golam | Golam Kibria (Golam Kibria) | Actor | 2001 - 2002 | 2 | |
| Kolev, Svetoslav | Svetoslav Kolev (Svetoslav Kolev) | Translator | 1994 - 2006 | 4 | |
| Klotz, Florence | Florence Klotz (Florence Klotz) | Costume Designer | 1982 | 1 | |
| Kruszewski, Antoni | Antoni Kruszewski (Antoni Kruszewski) | Actor | 1885 - 1887 | 2 | |
| Kelly, - | - Kelly (- Kelly) | Actor | 1891 | 1 | |
| Kimbrough, Mary Jane | Mary Jane Kimbrough (Mary Jane Kimbrough) | Actor | 1971 | 1 | |
| Kellegher, Tina | Tina Kellegher (Tina Kellegher) | Actor | 2000 | 1 | |
| Kelly, Sarah | Sarah Kelly (Sarah Kelly) | Actor, Dancer | 2000 - 2004 | 2 | |
| Kristiansen, Hilde B. | Hilde B. Kristiansen (Hilde B. Kristiansen) | Actor | 1995 | 1 | |
| Kirschenstein, Ch. | Ch. Kirschenstein (Ch. Kirschenstein) | Translator | 1957 | 1 | |
| Konold, Florence | Florence Konold (Florence Konold) | Actor | 1937 | 1 | |
| Kreher, Louise Lee | Louise Lee Kreher (Louise Lee Kreher) | Choreographer | 1937 | 1 | |
| Kauffman, Robert | Robert Kauffman (Robert Kauffman) | Actor | 1968 | 1 | |
| Kindelan, Nancy | Nancy Kindelan (Nancy Kindelan) | Actor, Director | 1968 - 2001 | 3 | |
| Kuykendall, Saisha | Saisha Kuykendall (Saisha Kuykendall) | Actor | 1999 | 1 | |
| Klipstein, Ernst Vollrath v. | Ernst Vollrath v. Klipstein (Ernst Vollrath v. Klipstein) | Actor | 1932 - 1963 | 2 | |
| Kerschbaumer, Hans-Peter | Hans-Peter Kerschbaumer (Hans-Peter Kerschbaumer) | Actor | 1979 | 1 | |
| Klein, Frieder | Frieder Klein (Frieder Klein) | Designer | 1971 - 1979 | 2 | |
| Knight, Albert | Albert Knight (Albert Knight) | Actor | 1966 | 1 | |
| Krémer, Ferenc | Ferenc Krémer (Ferenc Krémer) | Actor | 1962 | 1 | |
| Kinzler, Johannes | Johannes Kinzler (Johannes Kinzler) | Actor | 1991 | 1 | |
| Kruttke, Daniel | Daniel Kruttke (Daniel Kruttke) | Actor | 1991 | 1 | |
| Kruttke, Katharina | Katharina Kruttke (Katharina Kruttke) | Actor | 1991 | 1 | |
| Kraft-Alexander, - | - Kraft-Alexander (- Kraft-Alexander) | Director | 1964 | 1 | |
| Komanns, Paul Josef | Paul Josef Komanns (Paul Josef Komanns) | Designer | 1959 - 1964 | 2 | |
| Klaus, Rudolf U. | Rudolf U. Klaus (Rudolf U. Klaus) | Translator | 1964 - 1971 | 4 | |
| Kehoe, Joyce | Joyce Kehoe (Joyce Kehoe) | Actor | 1983 | 1 | |
| Koch, Danielle T. | Danielle T. Koch (Danielle T. Koch) | Actor | 1990 | 1 | |
| Keith, Susan | Susan Keith (Susan Keith) | Actor | 1989 | 1 | |
| Killfoile, Michael | Michael Killfoile (Michael Killfoile) | Actor | 1993 | 1 | |
| Koutoukas, H.K. | H. K. Koutoukas (H.K. Koutoukas) | | | | |
| Koutoukas, H.M. | H. M. Koutoukas (H.M. Koutoukas) | Actor | 1956 | 1 | |
| Kol'cov, Ju. | Ju. Kol'cov (Ju. Kol'cov) | Actor | 1939 - 1960 | 2 | |
| Kulesa, Tom | Tom Kulesa (Tom Kulesa) | Actor | 1994 - 1997 | 2 | |
| Krauze, Stanisław | Stanisław Krauze (Stanisław Krauze) | Actor | 1989 | 1 | |
| Karwański, Edmund | Edmund Karwański (Edmund Karwański) | Actor | 1983 | 1 | |
| Krawczyk, Bernard | Bernard Krawczyk (Bernard Krawczyk) | Actor | 1989 | 1 | |
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