| Cast list |
| Laurence Fishburne | as | Dr. Raymond Langston (voice) |
| George Eads | as | Nick Stokes (voice) |
| Paul Guilfoyle | as | Captain Jim Brass (voice) |
| Eric Szmanda | as | Greg Sanders (voice) |
| Robert David Hall | as | Dr. Al Robbins (voice) |
| Lauren Lee Smith | as | Riley Adams (voice) |
| Edie Mirman | as | Catherine Willows (voice) |
| David Boat | as | Charles Steer / Hank Hackett / Ernest Goldwasser (voice) |
| David Boyll | as | Dr. Vicente Manoto (voice) |
| Andrew Chaikin | as | Airam Dominguez / Steve Tampson / Gary Beaumont (voice) |
| David W. Collins | as | Horace Willingham / Jack Shell / Lyle Fitzer (voice) (as David Collins) |
| Connie Hall | as | Kathy Burd (voice) |
| Joe Paulino | as | Floyd Collister (voice) |
| Cathleen Riddley | as | Juarice Briggs (voice) |
| Rebecca Schweitzer | as | Narrator / Ring Girl / Wife (voice) |
