• Guest Stars: Lew Ayres (President Adar), Wilfrid Hyde-White (Sire Anton), John Fink (Dr. Payne), Jane Seymour (Serina)
• Special Guest Star: Ray Milland (Sire Uri)
• Co-Starring: Ed Begley, Jr. (Ensign Greenbean), Rick Springfield (Lieutenant Zac), Randi Oakes (Young Woman)
• With: Norman Stuart (Statesman), David Greenan (Bridge Officer), Sarah Rush (Woman on Duty), David Matthau (Operative), Chip Johnson (1st Warrior), Geoffrey Binney (2nd Warrior), Paul Coufos (Pilot), Bruce Wright (Deck Hand)
• Uncredited: Dick Durock (Imperious Leader), Patrick MacNee (Voice of Imperious Leader), Felix Silla (Lucifer)
• Written By: Glen A. Larson
• Directed By: Richard A. Colla

• Guest Stars: George Murdock (Dr. Salik), Ed Begley Jr. (Ensign Greenbean), Sheila DeWindt (Lieutenant Deitra), Janet Louise Johnson (Lieutenant Brie)
• Special Guest Star: Jane Seymour (Serina)
• Co-Starring: Sarah Rush (Rigel), David Greenan (Omega), Bruce Wright (1st Lieutenant Guard)
• With: Paul Coufos (2nd Guard), Jennifer Joseph (2nd Girl Warrior), Janet Lynn Curtis (Sorell), Leann Hunley (1st Girl Warrior), Gay Thomas (3rd Girl Warrior)
• Uncredited: Dick Durock (Imperious Leader), Patrick MacNee (Voice of Imperious Leader), Felix Silla (Lucifer), Jonathan Harris (Voice of Lucifer)
• Written By: Glen A. Larson & Donald Bellisario
• Directed By: Christian I. Nyby II

• Guest Stars: George Murdock (Dr. Salik), Ed Begley Jr. (Ensign Greenbean), Sheila DeWindt (Lieutenant Deitra), Janet Louise Johnson (Lieutenant Brie)
• Special Guest Star: Jane Seymour (Serina)
• Co-Starring: Larry Manetti (Giles), Sarah Rush (Rigel), David Greenan (Omega)
• With: Jennifer Joseph (2nd Girl Warrior), Janet Lynn Curtis (Sorell), Millicent Crisp (3rd Girl Warrior)
• Uncredited: Felix Silla (Lucifer), Jonathan Harris (Voice of Lucifer)
• Written By: Glen A. Larson & Donald Bellisario
• Directed By: Christian I. Nyby II

• Guest Stars: Kathy Cannon (Vella), Lance Le Gault (Bootees), Claude Earl Jones (Lacerta), Red West (Marco), Johnny Timko (Puppis)
• Co-Starring: Larry Manetti (Giles), Jay Donahue (Jason)
• With: Carol Baxter (Macy), Mary Kay Mars (Vi)
• Uncredited: Rex Cutter (Red Eye)
• Teleplay By: Donald Bellisario
• Story By: Herman Groves
• Directed By: Rod Holcomb

• Guest Stars: James Whitmore, Jr. (Robber), Ted Gehring (Croad)
• Co-Starring: Sean McClory (Assault), Tasha Martell (Adultress), Ian Abercrombie (Forger)
• With: Sarah Rush (Rigel), David Greenan (Omega), Robert Hathaway (Enforcer), Nancy DeCarl (Slayer)
• Uncredited: Cathy Paine (Voice of C.O.R.A.), John Holland (Waiter)
• Written By: Donald Bellisario
• Directed By: Christian I. Nyby II

• Guest Stars: Roy Thinnes (Croft), James Olson (Thane), Christine Belford (Leda), Richard Lynch (Wolfe), Denny Miller (Ser 5-9), Britt Ekland (Tenna)
• Co-Starring: Larry Manetti (Corporal Giles), Alan Stock (Cadet Cree), Curtis Credel (Haals), Jeff MacKay (Corporal Komma)
• With: Sarah Rush (Flight Corporal Rigel), David Greenan (Omega), Larry Cedar (Cadet Shields), Alex Hyde-White (Cadet Bow), Patrick Milholland (Killian), Walt Davis (Vickers)
• Uncredited: Felix Silla (Lucifer), Jonathan Harris (Voice of Lucifer)
• Teleplay By: Michael Sloan & Donald Bellisario & Glen A. Larson
• Story By: John Ireland, Jr.
• Directed By: Alan J. Levi

• Guest Stars: Roy Thinnes (Croft), James Olson (Thane), Christine Belford (Leda), Richard Lynch (Wolfe), Denny Miller (Ser 5-9), Britt Ekland (Tenna)
• Special Guest Star: Dan O'Herlihy (Dr. Ravishol)
• Co-Starring: Larry Manetti (Corporal Giles), Alan Stock (Cadet Cree), Curtis Credel (Haals)
• With: Sarah Rush (Flight Corporal Rigel), David Greenan (Flight Officer), Walt Davis (Vickers)
• Uncredited: Felix Silla (Lucifer), Jonathan Harris (Voice of Lucifer)
• Teleplay By: Michael Sloan & Donald Bellisario & Glen A. Larson
• Story By: John Ireland, Jr.
• Directed By: Alan J. Levi

• Guest Stars: Brett Somers (Siress Belloby), Dennis Fimple (Duggy), Eric Server (Dipper), Ed Begley Jr. (Ensign Greenbean), Barry Nelson (Bogan)
• Co-Starring: Olan Soulé (Carmichael), Rance Howard (Farnes)
• With: Sarah Rush (Rigel), David Greenan (Omega), Ben Frommer (Nogow)
• Written By: Glen A. Larson
• Directed By: Christian I. Nyby II

• Guest Stars: Charles Bloom (Kyle), Bruce Glover (Megan), Audrey Landers (Miri)
• With: Brigitte Muller (Ariadne), Jonathan B. Woodward (Robus), Adam Mann (Nilz)
• Uncredited: Jonathan Harris (Voice of Spectre)
• Written By: Donald Bellisario & Frank Lupo & Paul Playdon
• Directed By: Donald Bellisario

• Guest Stars: Jack Stauffer (Lieutenant Bojay), Rod Haase (Tolan)
• Special Guest Star: Lloyd Bridges (Commander Cain)
• With: David Greenan (Officer Omega), Junero Jennings (Launch Officer on Pegasus)
• Teleplay By: Glen A. Larson
• Story By: Ken Pettus & Glen A. Larson
• Directed By: Vince Edwards

• Guest Stars: Jack Stauffer (Lieutenant Bojay), Rod Haase (Tolan)
• Special Guest Star: Lloyd Bridges (Commander Cain)
• With: David Greenan (Officer Omega), Ted Hamaguchi (Helmsman)
• Teleplay By: Glen A. Larson
• Story By: Ken Pettus & Glen A. Larson
• Directed By: Vince Edwards

• Guest Stars: George Murdock (Dr. Salik), William Bryant (Chief Fire Officer)
• Co-Starring: Jeff MacKay (2nd Crewman)
• With: David Greenan (Officer Omega)
• Teleplay By: Jim Carlson & Terrence McDonnell
• Story By: Michael Sloan
• Directed By: Christian I. Nyby II

• Guest Stars: John Williams (Statesman), George Murdock (Dr. Salik), Janet Louise Johnson (Lieutenant Brie), Jack Stauffer (Captain Bojay), Ed Begley Jr. (Ensign Greenbean)
• Special Guest Star: Patrick MacNee (Count Iblis)
• Co-Starring: John Dullaghan (Dr. Wilker), Kirk Alyn (Old Man), Paula Victor (Old Woman)
• With: Sarah Rush (Rigel), Paul Coufos (1st Pilot), Chip Johnson (3rd Pilot), Bruce Wright (Guard), Leann Hunley (Girl Warrior), David Greenan (Omega), Olan Soulé (Carmichael), Norman Stuart (2nd Statesman)
• Written By: Glen A. Larson
• Directed By: Daniel Haller

• Guest Stars: John Williams (Statesman)
• Special Guest Star: Patrick MacNee (Count Iblis)
• Co-Starring: John Dullaghan (Dr. Wilker)
• With: Sarah Rush (Rigel), David Greenan (Omega), Norman Stuart (2nd Statesman)
• Written By: Glen A. Larson
• Directed By: Daniel Haller

• Guest Stars: Anne Jeffreys (Siress Blassie), Lance Le Gault (Maga), Robert Feero (Bora), Anthony De Longis (Taba)
• Special Guest Star: Fred Astaire (Chameleon)
• Co-Starring: Bruce Wright (Corporal Lomas), Dan Barton (Crewman), Patricia Stich (Zara), Frank Parker (Zed)
• With: Leann Hunley (Female Pilot), Alex Hyde-White (Male Pilot), David Greenan (Omega), John Holland (Maitre'd), Lynn Halpern (Dealer)
• Written By: Donald Bellisario
• Directed By: Rod Holcomb

• Guest Stars: Brock Peters (Chief Opposer Solon), W.K. Stratton (Wing Sergeant Barton), Ben Frank (Chella / Riftis), Lyman Ward (Pallon / Charybdis), Frank Ashmore (Flight Sergeant Ortega)
• Co-Starring: John Dullaghan (Dr. Wilker), Jeff MacKay (Corporal Komma), Newell Alexander (Elias), Frank Parker (Commentator Zed), Patricia Stich (Newswoman Zara)
• With: Ted Noose (Official), Paul LeClair (1st Guard)
• Teleplay By: Donald Bellisario & Jim Carlson & Terrence McDonnell
• Story By: Michael Sloan
• Directed By: Rod Holcomb

• Guest Stars: Randolph Mantooth (Michael), Kelly Harmon (Sarah), Murray Matheson (Statesman Geller), George Murdock (Dr. Salik), John Dullaghan (Dr. Wilker), Lesley Woods (Aggie Moreland), Frank Marth (Josh Moreland), Curt Lowens (Krebbs), Lloyd Bochner (Commandant Leiter), Bobby Van (Hector)
• Special Guest Star: Ray Bolger (Vector)
• Co-Starring: Gary Vinson (Doyle), Ron Kelly (Security Officer), Alex Rodine (Lanceman), Lester Fletcher (Donner)
• With: David Greenan (Omega), Michele Carol Larson (Charity), Gillian Greene (Melanie), G. Eric Larson (Todd), Kimberly Woodward (Loma), David G. Larson (Baby Walker), Donald Mantooth (Medical Technician)
• Written By: Glen A. Larson
• Directed By: Rod Holcomb

• Guest Stars: Ina Balin (Siress Tinia), Lloyd Bochner (Commandant Leiter), John Hoyt (Sire Domra), Robert Feero (Bora), Anthony DeLongis (Taba), Lance LeGault (Maga)
• Co-Starring: Bruce Wright (4th Guard), John Dullaghan (Dr. Wilker), Ron Kelly (1st Guard)
• With: Sarah Rush (Rigel), David Greenan (Omega), Mitchell Reta (Control Operator), Paul Tinder (5th Guard), Paul LeClair (2nd Guard)
• Written By: Donald Bellisario
• Directed By: Winrich Kolbe

• Guest Stars: Melody Anderson (Brenda Maxwell), Peter D. MacLean (President Arends), Edward Mulhare (John), Nehemiah Persoff (Eastern Alliance Leader), Logan Ramsey (Moore), Ken Swoffard (General Maxwell)
• Co-Starring: Sidney Clute (Stone), Kenneth Lynch (Dr. Horning), Jordan Rhodes (Brace), John DeLancie (Officer), Russ Marin (Alliance Member)
• With: David Greenan (Omega), Milt Janin (Alliance Leader)
• Written By: Glen A. Larson
• Directed By: Rod Holcomb

• Guest Stars: Paul Fix (Commander Kronus), Nick Holt (Charka), Ana Alicia (Aurora), Randy Stumpf (Damon)
• Co-Starring: Richard Styles (Hermes), James R. Parkes (1st Mutineer), Michael Horsley (2nd Mutineer)
• With: David Greenan (Omega), Ted Hamaguchi (3rd Crewman), Robert Murvin (Duty Officer)
• Teleplay By: Jim Carlson & Terrence McDonnell
• Story By: David S. Arthur & David G. Phinney & Jim Carlson & Terrence McDonnell
• Directed By: Daniel Haller

• With: David Greenan (Omega)
• Written By: Donald Bellisario
• Directed By: Donald Bellisario

• Written By: Jim Carlson & Terrence McDonnell