| Abby Brammell | => | Persis (Borderland) |
| Alec Newman | => | Malik (Borderland) |
| Bobbi Sue Luther | => | Orion Slave Woman (Borderland) |
| Brent Spiner | => | Dr. Arik Soong (Borderland) |
| J.G. Hertzler | => | Klingon Captain (Borderland) |
| Mark Correy | => | Engineer Alex (Borderland) |
| Paul Wight | => | Orion Slaver #1 (as Big Show) (Borderland) |
| Scott L. Schwartz | => | Orion Guard (Borderland) |
| Ada Maris | => | Captain Erika Hernandez (Home) |
| Jack Donner | => | Vulcan Priest (Home) |
| Jim Fitzpatrick | => | Commander Williams (Home) |
| Joanna Cassidy | => | T'Les (Home) |
| Michael Reilly Burke | => | Koss (Home) |
| Alexandra Lydon | => | Jhamel (The Aenar) |
| Alicia Adams | => | Lissan (The Aenar) |
| Scott Rinker | => | Gareb (as Scott Allen Rinker) (The Aenar) |
| André Bormanis | => | Civilian #1 (These Are the Voyages...) |
| Brent Spiner | => | Lt. Commander Data (voice) (These Are the Voyages...) |
| Garfield Reeves-Stevens | => | Starfleet Officer (These Are the Voyages...) |
| Jasmine Jessica Anthony | => | Talla (as Jasmine Anthony) (These Are the Voyages...) |
| Jonathan Frakes | => | Commander William T. Riker (These Are the Voyages...) |
| Judith Reeves-Stevens | => | Civilian #3 (These Are the Voyages...) |
| Larry Nemecek | => | Civilian #2 (These Are the Voyages...) |
| Majel Barrett | => | Enterprise D Computer Voice (voice) (These Are the Voyages...) |
| Manny Coto | => | N.D. Admiral (These Are the Voyages...) |
| Marina Sirtis | => | Counselor Deanna Troi (These Are the Voyages...) |
| Patrick Stewart | => | Captain Jean-Luc Picard (voice) (These Are the Voyages...) |
| Solomon Burke Jr. | => | Ensign (These Are the Voyages...) |
| William Shatner | => | Captain James T. Kirk (voice) (These Are the Voyages...) |
| Anthony Montgomery | => | Mirror MACO Sergeant Travis Mayweather (In a Mirror, Darkly: Part 1) |
| Connor Trinneer | => | Mirror Commander Charles 'Trip' Tucker III (In a Mirror, Darkly: Part 1) |
| Cully Fredricksen | => | Vulcan Captain (In a Mirror, Darkly: Part 1) |
| Dominic Keating | => | Mirror Major Malcolm Reed (In a Mirror, Darkly: Part 1) |
| James Cromwell | => | Zefram Cochrane (In a Mirror, Darkly: Part 1) |
| John Billingsley | => | Mirror Dr. Phlox (In a Mirror, Darkly: Part 1) |
| Jolene Blalock | => | Mirror Lt. Commander T'Pol (In a Mirror, Darkly: Part 1) |
| Linda Park | => | Mirror Lieutenant Hoshi Sato (In a Mirror, Darkly: Part 1) |
| Scott Bakula | => | Mirror Commander Jonathan Archer (In a Mirror, Darkly: Part 1) |
| Vaughn Armstrong | => | Mirror Captain Maximilian Forrest (In a Mirror, Darkly: Part 1) |
| Bill Cobbs | => | Dr. Emory Erickson (Daedalus) |
| Brad Greenquist | => | Rigelian Kidnapper (Affliction) |
| Derek Magyar | => | Commander Kelby (Affliction) |
| Eric Pierpoint | => | Harris (Affliction) |
| James Avery | => | General K'Vagh (Affliction) |
| John Schuck | => | Antaak (Affliction) |
| Marc Worden | => | Klingon Prisoner (Affliction) |
| Seth MacFarlane | => | Ensign Rivers (Affliction) |
| Brian Thompson | => | Admiral Valdore (Babel One) |
| J. Michael Flynn | => | Nijil (Babel One) |
| Lee Arenberg | => | Tellarite Ambassador Gral (Babel One) |
| Molly Brink | => | Lieutenant Talas (Babel One) |
| Bruce Gray | => | Surak (Awakening) |
| John Rubinstein | => | Minister Kuvak (Awakening) |
| Kara Zediker | => | T'Pau (Awakening) |
| Christopher Neame | => | German General (Storm Front: Part 1) |
| Duncan K. Fraser | => | Ensign Walsh (Storm Front: Part 1) |
| Golden Brooks | => | Alicia Travers (Storm Front: Part 1) |
| J. Paul Boehmer | => | SS Agent (Storm Front: Part 1) |
| Jack Gwaltney | => | Vosk (Storm Front: Part 1) |
| Joe Maruzzo | => | Sal (Storm Front: Part 1) |
| John Fleck | => | Silik (Storm Front: Part 1) |
| Steve Schirripa | => | Carmine (as Steven R. Schirripa) (Storm Front: Part 1) |
| Tom Wright | => | Ghrath (Storm Front: Part 1) |
| Crystal Allen | => | D'Nesh (Bound) |
| Cyia Batten | => | Navaar (Bound) |
| Menina Fortunato | => | Maras (Bound) |
| William Lucking | => | Harrad-Sar (Bound) |
| Gary Graham | => | Mirror Crewman Soval (In a Mirror, Darkly: Part 2) |
| Gregory Itzin | => | Mirror Admiral Black (In a Mirror, Darkly: Part 2) |
| Majel Barrett | => | Defiant Computer Voice (voice) (In a Mirror, Darkly: Part 2) |
| Mike Sussman | => | Dead Crewman (In a Mirror, Darkly: Part 2) |
| Harry Groener | => | Nathan Samuels (Demons) |
| Johanna Watts | => | Gannet Brooks (Demons) |
| Peter Mensah | => | Daniel Greaves (Demons) |
| Peter Weller | => | John Frederick Paxton (Demons) |
| Steve Rankin | => | Colonel Green (Demons) |
| Tom Bergeron | => | Coridan Ambassador (Demons) |
| Josh Holt | => | Ensign Masaro (Terra Prime) |
| Larc Spies | => | Stel (The Forge) |
| Michael Nouri | => | Arev, aka Syrran (The Forge) |
| Robert Foxworth | => | Administrator V'Las (The Forge) |
| Mark Rolston | => | Captain Magh (The Augments) |
| Richard Riehle | => | Dr. Jeremy Lucas (Cold Station 12) |
| Wayne Grace | => | Fleet Admiral Krell (Divergence) |
