Actors who have appeared in Star Trek and Seinfeld episodes
Jason Alexander modelled his acting style after Bill Shatner. He was
always enamoured by Star Trek and wanted to act in one. As soon as
"Seinfeld" finished it's run Jason got a guest appearance in
"Voyager". Many other Seinfeld alumni have acted in Star Trek
episodes, some were major characters in Seinfeld and others were just
journeyman actors. Here is the list so far, with many more to check
out.
Michelle Forbes [The Big Salad]
[Next Generation: Lt. Lo, many]
Jason Alexander [George Costanza]
[Voyager, Think Tank]
Estelle Harris [Estelle Costanza]
[Voyager, Sacred Ground]
Richard Herd [Mr.Wilhelm]
[Voyager, Admiral Paris, + many]
Heidi Swedberg [Susan Biddle Ross]
[Deep Space Nine, Profit and Loss]
Peter Crombie [Crazy Joe Devola]
[Deep Space Nine, Fallit Kot]
Gene Dynarski [The English Patient, Izzy Jr]
[Star Trek, The Mark of Gideon]
Todd Jeffries [The English Patient, Blaine]
[Star Trek: Voyager, Flesh and Blood]
Henry Woronicz [The Yada Yada, Father Curtis ]
[Voyager, Living Witness]
Vince Grant [The Nap, Hal]
[Enterprise, Chosen Realm]
Stephen Lee [The Nap, Conrad]
[The Next Generation, Gambit]
Marco Rodriguez [The English Patient, Guillermo]
[The Next Generation, The Wounded, The Arsenal of Freedom]
Daniel Dae Kim [Student #1, The Burning]
[Enterprise, Extinction]
[Enterprise, The Xindi]
[Voyager, Blink of an Eye]
Angelo Tiffe [The Nap, Delivery Man]
[Star Trek VI: The Undiscovered Country]Excelsior Navigator
Armin Shimerman [Stan The Caddy]
[Voyager, Quark in Caretaker]
[Next Generation, Quark in First Born]
[Deep Space Nine, Quark]
[The Next Generation, Letek in Shades of Gray]
[The Next Generation, DaiMon Bractor in Peak Performance]
[The Next Generation, Wedding Gift Box in Haven]
[The Next Generation, Letek in Last Outpost]
Ian Abercrombie [Mr. Pitt]
[Voyager, Spirit Folk]
Tom Wright [Mr. Morgan]
[Voyager, Tuvix]
Phil Morris [Jackie Chiles]
[Voyager, One Small Step]
[STAR TREK!!, Miri]
[Deep Space Nine, Looking for par'Mach]
[Deep Space Nine, Rocks and Shoals]
Richard Fancy [Mr. Lippman]
[Voyager, Alien, Tattoo]
[Next Generation, First Duty]
Clint Howard [Tobias Lehigh Nagy, The Trip]
[STAR TREK!!, Corbomite Maneuver]
[Deep Space Nine, Past Tense]
[Enterprise, Acquisition]
Lawrence Tierney [Alton Benes, The Jacket]
[Deep Space Nine, Business as Usual]
[Next generation, Big Goodbye]
Brian George [Babu; The Cafe]
[Voyager, Drive]
Michelle Bonilla [Waitress; The Shower Head]
[Enterprise, Sleeping Dogs]
Scott Klace [Guard; The Finale]
[Enterprise, Precious Cargo]
[Voyager, Juggernaut]
Scott Burkholder [Prisoner; The Airport]
[Enterprise, The Catwalk]
[Deep Space Nine, When It Rains...]
Garman Hertzler [Mr. Berger; The Wait Out]
[Enterprise, Judgment]
[Deep Space Nine, playing Martok, many episodes]
[Deep Space Nine, Emissary]
Ed O'Ross [Det. Blake; The Finale]
[Enterprise, Bounty]
Lee Arenberg [Mike Moffat; The Susie, The Parking Space]
[Next Generation, Bloodlines]
[Next Generation, Force of Nature]
[Deep Space Nine, Nagus]
Vince Grant [Hal; The Nap]
[Enterprise, Chosen Realm]
Coben Benson [Himself; The Trip]
[Next Generation, Deja Q]
Stephen McHattie [Dr. Reston; The Pitch, the Ticket, The Wallet, The
Watch]
[Enterprise, The Xindi]
[Deep Space Nine, In the Pale Moonlight]
Gina Hecht [Dana Foley]
[Next Generation, Matter of Perspective]
Bill Erwin [Sid Fields; The Aleternate Side]
[Next Generation, Remember Me]
Teri Hatcher [The Implants]
[Next Generation, Outrageous Okona]
Tucker Smallwood [Malcolm; The Summer of George; Man in Mercedes-The
Parking Garage]
[Photographer-The Pen]
[Enterprise, Xindi-Proving Ground,...]
[Voyager, In the Flesh]
Sherman Howard [Roy; The Junior Mint]
[Voyager, Prophecy]
[Deep Space Nine, Shakaar]
[Next Generation, Suddenly Human]
William Utay [Dr. Korval]
[Enterprise, Breaking the Ice]
Adrian Sparks [Man; - The Summer of George]
[Voyager, Retrospect]
Mark Metcaff [The Maestro]
[Voyager, Killing Game]
John Cothran Jr. [Man; The Diplomat's Club]
[Enterprise, The Shipment]
[Deep Space Nine, Crossover]
[The Next Generation, The Chase]
Angela Dohrmann Seinfeld" [Donna Chang, The Chinese Woman]
[Voyager, Meld, The Cloud]
Kelly Waymire [The Blood]
[Enterprise, Two Days and Two Nights]
[Voyager, Muse]
Brenda Strong [Sue Ellen Mische; The Caddy, The Betrayal]
[Next Generation, When the Bough Breaks]
Bruce Davidson [Mr. Wyck; TheFoundation, The Soul Mate, The Van Buren
Boys]
[Enterprise, Seventh]
[Voyager, Remember]
Larry Hankin [TV Kramer; The Pilot]
[Voyager, Twisted]
Vaughn Armstrong [Lt. Coleman; The Trip]
[Enterprise, The Expanse, ..., Vox Sola]
[Voyager, Endgame, Flesh and Blood, Fury, Survival Instinct, Eye of
the Needle]
[Deep Space Nine, The Dogs of War]
[The Next Generation, Heart of Glory]
Erick Avari [Cabbie; The Pilot (1)]
[Enterprise, Terra Nova]
[The Next Generation, Unification]
[Deep Space Nine, Destiny]
Christopher Darga [Driver, The Lip Reader]
[Enterprise, Klingon Captian - Unexpected]
[Voyager, Think Tank]
[Deep Space Nine, The Way of the Warrior]
John Fleck [Attendant, The Heart Attack]
[Enterprise, Broken Arrow]
[Voyager, Alice]
[Deep Space Nine, Inter Arma Enim Silent Leges]
[Star Trek: The Next Generation, The Minds Eye]
William Utay [Dr. Korval - The Chinese Woman]
[Enterprise, Breaking the Ice]
Mimi Cozzins [The Puerto Rican Day - Mrs. Canterman]
[The Next Generation: Unification]
Anthony Crivello [The Maid -Maxwell]
[Voyager: Warlord]
Marcelo Tubert [The Puerto Rican Day - Father]
[The Next Generation: Devil's Due]
John Paragon [The Sponge, The Puerto Rican Day - Cedric: The Soup Nazi
- Ray]
[Deep Space Nine: Prodigal Daughter]
Chip Heller [The Puerto Rican Day - Policeman]
[The Next Generation: (uncredited) Shades of Gray]
Guy Siner [Mandel, The Doodle]
[Enterprise, Silent Enemy]
Melinda Clarke [The Muffin Tops: Alex]
[Enterprise: Broken Bow]
Brent Hinkly [The Merv Griffin Show-Lou]
[Voyager, Future's End]
Kellie Waymire [The Blood - [Vivian]
[Enterprise, Two Days and Two Nights]
Peter Dennis [Lew; The Summer of George]
[Voyager:Friendship One, The Darkling, Death Wish]
Brian J. Williams [The Voice- Glenn]
[Deep Space Nine, What You Leave Behind]
[First Contact, (stunts)]
Matt McCoy [The Serenity Now - Lloyd Braun]
[The Next Generation, The Price]
Earl Boen [Eulogist, The Pony Remark]
[Star Trek Voyager: Elite Force(voice)]
James Lashly [The Baby Shower]
[Deep Space Nine, Move Along Home]
[The Next Generation, Brothers]
James Patrick Stuart [Brett, The Checks]
I just had to list him because of his name.
