4,750 actors with a page here, the busiest first, counted by the productions and shows we hold for each. Another 24,181 people are named in cast lists and have no page yet.
| Kate Jennings Grant Actor | 3 productions |
| Kate Reinders Actor | 3 productions |
| Kate Shindle Actor | 3 productions |
| Katherine McGrath Actor | 3 productions |
| Kathi Moss Actor | 3 productions |
| Kathlene Martyn Actor | 3 productions |
| Kathryn Lee Actor | 3 productions |
| Kathy Fitzgerald Actor | 3 productions |
| Katie Rose Clarke Actor | 3 productions |
| Kayla Pecchioni Actor | 3 productions |
| Kecia Lewis Actor | 3 productions |
| Keith Andes Actor | 3 productions |
| Keith Michell Actor | 3 productions |
| Kelsey Fowler Actor | 3 productions |
| Kelsey Grammer Actor | 3 productions |
| Ken Ard Actor | 3 productions |
| Kenita R. Miller Actor | 3 productions |
| Kenneth Davis Actor | 3 productions |
| Kevin Del Aguila Actor | 3 productions |
| Kevin Kline Actor | 3 productions |
| Kim Crosby Actor | 3 productions |
| Kim Milford Actor | 3 productions |
| Kim Morgan Greene Actor | 3 productions |
| Kingsley Leggs Actor | 3 productions |
| Kyle Brown Actor | 3 productions |
| Larry Blyden Actor | 3 productions |
| Larry Fuller Actor, Choreographer | 3 productions |
| Laura Michelle Kelly Actor | 3 productions |
| Laura Osnes Actor | 3 productions |
| Laura Shoop Actor | 3 productions |
| Lauren Blackman Actor | 3 productions |
| Lauren Ward Actor | 3 productions |
| Laurie Beechman Actor | 3 productions |
| LeVern Hutcherson Actor | 3 productions |
| Lee Barnett Actor | 3 productions |
| Lee Goodman Actor | 3 productions |
| Leigh Zimmerman Actor | 3 productions |
| Leland Palmer Actor | 3 productions |
| Leon Lishner Actor | 3 productions |
| Lesley Ann Warren Actor | 3 productions |
| Leslie Odom Jr. Actor | 3 productions |
| Leslie Uggams Actor | 3 productions |
| Lew Parker Actor | 3 productions |
| Lewis J. Stadlen Actor | 3 productions |
| Lidija Franklin Actor | 3 productions |
| Lilli Cooper Actor | 3 productions |
| Lillian Bozinoff Actor | 3 productions |
| Lillian Donau Actor | 3 productions |
| Lillian Gish Actor | 3 productions |
| Lillian Roth Actor | 3 productions |
| Lionel Stander Actor | 3 productions |
| Lisa Howard Actor | 3 productions |
| Loren Driscoll Actor | 3 productions |
| Lorna Del Maestro Actor | 3 productions |
| Louis Harrison Actor | 3 productions |
| Louise Groody Actor | 3 productions |
| Luba Lisa Actor | 3 productions |
| Lucie Lancaster Actor | 3 productions |
| Luella Gear Actor | 3 productions |
| Lulu Bates Actor | 3 productions |