- Richard Hatch
- Â Captain Apollo 21 episodes, 1978-1979
- Dirk Benedict
- Â Lieutenant Starbuck 21 episodes, 1978-1979
- Lorne Greene
- Â Adama 21 episodes, 1978-1979
- Herbert Jefferson Jr.
- Â Lieutenant Boomer 21 episodes, 1978-1979
- John Colicos
- Â Count Baltar 21 episodes, 1978-1979
- Maren Jensen
- Â Lieutenant Athena 21 episodes, 1978-1979
- Noah Hathaway
- Â Boxey 21 episodes, 1978-1979
- Laurette Spang
- Â Cassiopeia 21 episodes, 1978-1979
- Tony Swartz
- Â Flight Sergeant Jolly 21 episodes, 1978-1979
- Terry Carter
- Â Colonel Tigh 21 episodes, 1978-1979
- David Greenan
- Â Omega / ... 18 episodes, 1978-1979
- Anne Lockhart
- Â Lieutenant Sheba 11 episodes, 1978-1979
- Sarah Rush
- Â Rigel / ... 10 episodes, 1978-1979
- John Dullaghan
- Â Dr. Wilker 5 episodes, 1978-1979
- George Murdock
- Â Dr. Salik 5 episodes, 1978-1979
- Ed Begley Jr.
- Â Flight Sergeant Greenbean / ... 5 episodes, 1978-1979
- Bruce Wright
- Â 1st Lt. Guard / ... 5 episodes, 1978-1979
- Larry Manetti
- Â Giles 4 episodes, 1978
- Patrick Macnee
- Â Imperious Leader / ... 2 episodes, 1978-1979
- Janet Julian
- Â Lieutenant Brie / ... 4 episodes, 1978-1979
- Leann Hunley
- Â 1st Girl Warrior / ... 3 episodes, 1978-1979
- Paul LeClair
- Â 1st Guard / ... 2 episodes, 1979
- Jack Stauffer
- Â Lieutenant Bojay / ... 3 episodes, 1978-1979
- Lance LeGault
- Â Maga / ... 3 episodes, 1978-1979
- Jane Seymour
- Â Serina 3 episodes, 1978
- Jeff MacKay
- Â 2nd Crewman / ... 3 episodes, 1978-1979
- Norman Stuart
- Â 2nd Statesman / ... 3 episodes, 1978-1979
- Paul Coufos
- Â 1st Pilot / ... 3 episodes, 1978-1979
- Roy Thinnes
- Â Croft 2 episodes, 1978
- James Olson
- Â Thane 2 episodes, 1978
- John Williams
- Â Sire Montrose 2 episodes, 1979
- Christine Belford
- Â Leda 2 episodes, 1978
- Sheila Wills
- Â Lieutenant Deitra 2 episodes, 1978
- Rod Haase
- Â Flight Officer Tolan 2 episodes, 1978
- Lloyd Bridges
- Â Commander Cain 2 episodes, 1978
- Richard Lynch
- Â Wolfe 2 episodes, 1978
- Robert Feero
- Â Bora 2 episodes, 1979
- Denny Miller
- Â Ser 5-9 2 episodes, 1978
- Anthony De Longis
- Â Taba 2 episodes, 1979
- Britt Ekland
- Â Tenna 2 episodes, 1978
- Lloyd Bochner
- Â Commandant Leiter 2 episodes, 1979
- Ted Hamaguchi
- Â 3rd Crewman / ... 2 episodes, 1978-1979
- Alan Stock
- Â Cadet Cree 2 episodes, 1978
- Curtis Credel
- Â Haals 2 episodes, 1978
- Jennifer Joseph
- Â 2d Girl Warrior / ... 2 episodes, 1978
- Frank Parker
- Â Zed 2 episodes, 1979
- Patricia Stich
- Â Zara 2 episodes, 1979
- Janet Prescott
- Â Sorrell 2 episodes, 1978
- Olan Soule
- Â Carmichael 2 episodes, 1978-1979
- Ron Kelly
- Â 1st Guard / ... 2 episodes, 1979
- Harry Johnson
- Â 1st Warrior / ... 2 episodes, 1978-1979
- Alex Hyde-White
- Â Cadet Bow / ... 2 episodes, 1978-1979
- Walt Davis
- Â Vickers 2 episodes, 1978
- Murray Matheson
- Â Specter / ... 1 episode, 1978-1979
- Carol Baxter
- Â Macy / ... 1 episode, 1978
- Millicent Crisp
- Â 3rd Girl Warrior / ... 1 episode, 1978
- John Holland
- Â Maitre'd / ... 1 episode, 1978-1979
- Lew Ayres
- Â President Adar 1 episode, 1978
- Wilfrid Hyde-White
- Â Anton 1 episode, 1978
- Katherine Cannon
- Â Vella 1 episode, 1978
- Brett Somers
- Â Siress Belloby 1 episode, 1978
- James Whitmore Jr.
- Â Robber 1 episode, 1978
- Charles Bloom
- Â Kyle 1 episode, 1978
- Bruce Glover
- Â Megan 1 episode, 1978
- Dennis Fimple
- Â Duggy 1 episode, 1978
- Ted Gehring
- Â Croad 1 episode, 1978
- Randolph Mantooth
- Â Michael 1 episode, 1979
- Melody Anderson
- Â Brenda Maxwell 1 episode, 1979
- Paul Fix
- Â Commander Kronus 1 episode, 1979
- Brock Peters
- Â Chief Opposer Solon 1 episode, 1979
- Ina Balin
- Â Siress Tinia 1 episode, 1979
- Anne Jeffreys
- Â Siress Blassie 1 episode, 1979
- Audrey Landers
- Â Miri 1 episode, 1978
- William Bryant
- Â Fire Leader 1 episode, 1978
- Claude Earl Jones
- Â Lacerta 1 episode, 1978
- Sean McClory
- Â Assault 9 1 episode, 1978
- John Fink
- Â Dr. Payne 1 episode, 1978
- Eric Server
- Â Dipper 1 episode, 1978
- W.K. Stratton
- Â Lieutenant Barton 1 episode, 1979
- Kelly Harmon
- Â Sarah 1 episode, 1979
- Peter MacLean
- Â President 1 episode, 1979
- Nick Holt
- Â Charka 1 episode, 1979
- Arlene Martel
- Â Adulteress 58 1 episode, 1978
- Red West
- Â Marco 1 episode, 1978
- Brigitte Muller
- Â Ariadne 1 episode, 1978
- John Hoyt
- Â Sire Domra 1 episode, 1979
- Edward Mulhare
- Â John 1 episode, 1979
- Ana Alicia
- Â Aurora 1 episode, 1979
- Ben Frank
- Â Chella / ... 1 episode, 1979
- Ian Abercrombie
- Â Forger 7 1 episode, 1978
- Ray Milland
- Â Sire Uri 1 episode, 1978
- Barry Nelson
- Â Bogan 1 episode, 1978
- Johnny Timko
- Â Puppis 1 episode, 1978
- Jonathan B. Woodward
- Â Robus 1 episode, 1978
- Nehemiah Persoff
- Â Eastern Alliance Leader 1 episode, 1979
- Lyman Ward
- Â Karibdis / ... 1 episode, 1979
- Randy Stumpf
- Â Damon 1 episode, 1979
- Rick Springfield
- Â Lieutenant Zac 1 episode, 1978
- Junero Jennings
- Â Launch Officer on Pegasus 1 episode, 1978
- Adam Mann
- Â Nilz 1 episode, 1978
- Fred Astaire
- Â Chameleon 1 episode, 1979
- Logan Ramsey
- Â Moore 1 episode, 1979
- Frank Ashmore
- Â Flight Sergeant Ortega 1 episode, 1979
- Richard Styles
- Â Hermes 1 episode, 1979
- Rance Howard
- Â Farnes 1 episode, 1978
- Dan O'Herlihy
- Â Dr. Ravashol 1 episode, 1978
- Randi Oakes
- Â Young Woman 1 episode, 1978
- Jay Donahue
- Â Jason 1 episode, 1978
- Ken Swofford
- Â General Maxwell 1 episode, 1979
- Lesley Woods
- Â Aggie Moreland 1 episode, 1979
- James R. Parkes
- Â 1st Mutineer 1 episode, 1979
- Robert Hathaway
- Â Enforcer 1 episode, 1978
- Frank Marth
- Â Josh Moreland 1 episode, 1979
- Sidney Clute
- Â Stone 1 episode, 1979
- Dan Barton
- Â Crewman 1 episode, 1979
- Michael Horsley
- Â 2nd Mutineer 1 episode, 1979
- Nancy DeCarl
- Â Slayer 1 episode, 1978
- Mary Kay Mars
- Â Vi 1 episode, 1978
- Ken Lynch
- Â Dr. Horning 1 episode, 1979
- Kirk Alyn
- Â Old Man 1 episode, 1979
- Curt Lowens
- Â Krebbs 1 episode, 1979
- Newell Alexander
- Â Elias 1 episode, 1979
- Ben Frommer
- Â Nogow 1 episode, 1978
- Jordan Rhodes
- Â Brace 1 episode, 1979
- Paula Victor
- Â Old Woman 1 episode, 1979
- David Matthau
- Â Operative 1 episode, 1978
- John de Lancie
- Â Officer 1 episode, 1979
- Bobby Van
- Â Hector 1 episode, 1979
- Robert Murvin
- Â Duty Officer 1 episode, 1979
- Ray Bolger
- Â Vector 1 episode, 1979
- Russ Marin
- Â Alliance Member 1 episode, 1979
- Ted Noose
- Â Official 1 episode, 1979
- Larry Cedar
- Â Cadet Shields 1 episode, 1978
- Gay Thomas Wilson
- Â 3rd Girl Warrior 1 episode, 1978
- Geoffrey Binney
- Â 2nd Warrior 1 episode, 1978
- Gary Vinson
- Â Doyle 1 episode, 1979
- Mitchell Reta
- Â Control Operator 1 episode, 1979
- Milton James
- Â Alliance Leader 1 episode, 1979
- Paul Tinder
- Â 5th Guard 1 episode, 1979
- Richard Milholland
- Â Killian 1 episode, 1978
- Lynn Halpern
- Â Dealer 1 episode, 1979
- Alex Rodine
- Â Lanceman 1 episode, 1979
- Lester Fletcher
- Â Donner 1 episode, 1979
- Michelle Larson
- Â Charity 1 episode, 1979
- Gillian Greene
- Â Melanie 1 episode, 1979
- Eric Larson
- Â Todd 1 episode, 1979
- Kimberly Woodward
- Â Loma 1 episode, 1979
- D.G. Larson
- Â Baby Walker 1 episode, 1979
- Don Mantooth
- Â Med. Technician 1 episode, 1979
- Felix Silla
- Â Lucifer (uncredited) 10 episodes, 1978-1979
- Jonathan Harris
- Â Lucifer (uncredited) 9 episodes, 1978-1979
- Marneen Fields
- Â Fighter Pilot (uncredited) 3 episodes, 1978-1979
- Dick Durock
- Â Imperious Leader (uncredited) 2 episodes, 1978
- Reggie Nalder
- Â Bartender (uncredited) 1 episode, 1978
- Sandra Lee Gimpel
- Â Seetol (uncredited) 1 episode, 1978
- David Tress
- Â Sandell (uncredited) 1 episode, 1978
- Cathey Paine
- Â C.O.R.A. (uncredited) 1 episode, 1978
- Paula Crist
- Â Ovion (uncredited) 1 episode, 1978
- Rex Cutter
- Â Red Eye (uncredited) 1 episode, 1978
- Jim Peck
- Â TV Reporter During Attack (uncredited) 1 episode, 1978
- Pattie Brooks
- Â Tucana Singer (uncredited) 1 episode, 1978
- Marti McCall
- Â Space Angel (uncredited) 1 episode, 1978
- Carolyn Willis
- Â Space Angel (uncredited) 1 episode, 1978
- Myrna Matthews
- Â Space Angel (uncredited) 1 episode, 1978
- Diane Burgdorf
- Â Ovion Queen (uncredited) 1 episode, 1978
- Tucker Smith
- Â Council Member (uncredited) 1 episode, 1979
- Norman Stevans
- Â Council Member (uncredited) 1 episode, 1979
- Bert Madrid
- Â Club Patron (uncredited) 1 episode, 1979
- George Simmons
- Â Council Member (uncredited) 1 episode, 1979
- Robert Hitchcock
- Â Council Member (uncredited) 1 episode, 1979
- Arnold Roberts
- Â Dealer (uncredited) 1 episode, 1979
- Robert Strong
- Â Council Member (uncredited) 1 episode, 1979
- Paul Van
- Â Club Patron (uncredited) 1 episode, 1979
- Victor Toyota
- Â Dealer (uncredited) 1 episode, 1979
- George Sasaki
- Â Council Member (uncredited) 1 episode, 1979
- Sam Nickens
- Â Club Patron (uncredited) 1 episode, 1979
- Johnny Disco
- Â Club Patron (uncredited) 1 episode, 1979