| Name | Roles |
|---|---|
| Knox, Sandy | Music, Performer |
| Knox, Wendy | Performer |
| Knozal, Jack | Performer |
| Knudsen, Kurt | Performer |
| Knudsen, Linda M. | Performer |
| Knudsen, Perry | Performer |
| Knudson, Kurt | Performer (2) |
| Knueppe, Joanna | Performer |
| Knuff, Thekla | Performer |
| Knutzon, Lars | Performer (2) |
| Knuver, Christin | Performer |
| Knyght-Smith, Douglas | Book, Producer |
| Ko, Leon | Music (7), Book, Orchestrations, Vocal_Arrangements (2), Producer, Performer (2) |
| Kobart, Ruth | Performer (10) |
| Kobayashi, Katsuya | Performer |
| Kobb, Susanne | Performer |
| Kobeck, Kim | Performer |
| Kober, Andrew | Performer |
| Kober, Arthur | Book (3) |
| Koberstedt, William | Performer |
| Kobsa, Silvia | Performer |
| Kobylarz, Caroline | Performer |
| Koc, Jozic | Performer |
| Kocab, Michael | Performer |
| Kocalis, Jill | Performer |
| Kočandrle, Vladimír | Lyrics (2), Producer |
| Koch, Anton | Orchestrations |
| Koch, Bettina | Conductor |
| Koch, David | Performer (3) |
| Koch, Ed | Performer |
| Koch, Erin | Performer |
| Koch, Geoff | Performer (4) |
| Koch, Howard | Book, Producer |
| Koch, Jeremy | Performer |
| Koch, John | Performer (4) |
| Koch, Laura Dean | Performer (2) |
| Koch, Martin | Orchestrations (10), Conductor (11), Music_Director (6), Vocal_Arrangements (3), Producer (9), Performer |
| Koch, Matthias | Performer |
| Koch, Oliver | Music, Lyrics, Book, Performer |
| Koch, Robert | Performer |
| Koch, Ruth Sharon | Lyrics, Book |
| Koch, Sophie | Performer |
| Kochalski, Heike | Performer |
| Kochan, Jayson | Performer |
| Kochan, Tom | Orchestrations (7), Conductor, Producer |
| Kochen, Jesse | Performer |
| Kochka, Timothy | Performer |
| Koci, Hubert | Music, Lyrics, Book |
| Kociolek, Ted | Music |
| Kociolek, Ted | Book |