| Cast list |
| George Almond | as | Elasi Crewman #1 / Elasi Crewman #2 (voice) |
| Robert V. Barron | as | Brother Stephen (voice) (as Robert Barron) |
| Catherine Battistone | as | Narrator (voice) |
| Steve Bulen | as | Elasi Cereth / Lt. Ferris / Captain Patterson (voice) |
| Anthony De Longis | as | Federation admiral (voice) |
| James Doohan | as | Montgomery Scott (voice) |
| Eddie Frierson | as | Ens. Everts / Elasi Captain (voice) |
| Clynell Jackson III | as | Vlict Kenka (voice) |
| DeForest Kelley | as | Dr. Leonard 'Bones' McCoy (voice) |
| Walter Koenig | as | Ens. Pavel Chekov (voice) |
| Joyce Kurtz | as | Computer voices (voice) |
| Kerrigan Mahan | as | Lt. Stragey / Brother Chubb (voice) |
| Dave Mallow | as | Ens. Kije (voice) |
| Michael McConnohie | as | Lt. Christensen / Commander Taraz (voice) |
| Nichelle Nichols | as | Lt. Uhura (voice) |
| Leonard Nimoy | as | Cmdr. Spock (voice) |
| Sally Rainer | as | Federation admiral (voice) |
| Darren Raleigh | as | Ens. Mosher (voice) |
| Mike Reynolds | as | Ies Bredell (voice) |
| William Shatner | as | Capt. James T. Kirk (voice) |
| Michael Sorich | as | Ens. Bennie / Kallarax (voice) |
| Melodee Spevack | as | Computer / Brittany Marata (voice) |
| Doug Stone | as | Prelate Angiven & Tlaoxac (voice) |
| Terrence Stone | as | Lt. Buchert & Andrea Preax & Brother Roberts (voice) |
| George Takei | as | Hikaru Sulu (voice) |
| Robert Towers | as | Crewman #1 / Biabli / Lights (voice) (as Bob Towers) |
| Jeff Winkless | as | Quetzelcoatl (voice) (as Jeffrey Winkless) |
| Tom Wyner | as | Harry Mudd / Cheever (voice) |
