• Special Guest Star: Sterling Hayden (Jeremiah)
• Supporting Cast: George Sperdakos (Jubal), Gillie Fenwick (Old Abraham), Sean Sullivan (Rachel's Father), Aileen Seaton (Rachel's Mother), Jim Barron (Garth's Father), Kay Hawtrey (Garth's Mother), Scott Fisher (Small Boy)
• Written By: Cordwainer Bird aka Harlan Ellison
• Directed By: Harvey Hart

• Special Guest Star: Frank Converse (Dr. Gerald Aaron)
• Supporting Cast: Doug McGrath (Sergeant), Vivian Reis (Jane), Clive Endersby (1st Tube Dweller), Alan Bleviss (2nd Tube Dweller)
• Written By: Douglas Hall & Don Wallace
• Directed By: Leo Orenstein

• Special Guest Stars: John Colicos (The Governor), Barry Morse (Shaliff)
• Supporting Cast: Dominic Hogan (Priest), Michael Kirby (Captain), Peter Langley (Soldier), Ardon Bess (Soldier), George Naklowych (Deputy)
• Written By: Martin Lager
• From a Story By: Ursula K. Le Guin
• Directed By: Harvey Hart

• Special Guest Star: Lloyd Bochner (Colonel Garoway)
• Supporting Cast: Carole Lazare (Teale), Diana Barrington (Janice), Ted Beatie (Old Man), Lillian Graham (Old Woman)
• Written By: Norman Klenman
• Directed By: Leo Orenstein

• Featuring: David Tyrrell (Captain), Susan Stacey (Number 5)
• Supporting Cast: Gina Dick (Supervisor), Scott Fisher (Number 4), Michael Tough (Number 2), Ricky O'Neill (Number 6), Mark Lynas (Number 7)
• Written By: Jonah Royston & George Ghent
• Directed By: Joseph L. Scanlan

• Special Guest Star: Simon Oakland (Dr. Asgard)
• Supporting Cast: Trudy Young (Lethe), Irena Mayeska (Dr. Diana Tabor), Tim Whelan (Village Elder), John Bethune (Villager "A")
• Written By: Shimon Wincelberg
• Directed By: Ed Richardson

• Special Guest Star: Percy Rodrigues (Sakharov)
• Supporting Cast: Nerene Virgin (Valerie), Calvin Butler (Cort)
• Written By: Norman Klenman
• Directed By: Peter Levin

• Special Guest Star: Angel Tompkins (Daphne)
• Supporting Cast: Allen Coates (Magnus), William Clune (Captain), Jim Barron (Garth's Father), Aileen Seaton (Rachel's Mother), Danny Hodgkins (Monster), William Osler (The Computer Host)
• Written By: Alfred Harris & George Ghent
• From a Story By: Alfred Harris
• Directed By: Ed Richardson

• Special Guest Star: Ed Ames (Mr. Smith)
• Supporting Cast: Pat Galloway (Trent), Doris Petrie (Nurse), Pattie Elsasser (Secretary), Les Rubie (City Man), Jim Barron (Computer Voice)
• Written By: Arthur Heinemann & Norman Klenman
• From a Story By: Arthur Heinemann
• Directed By: Joseph L. Scanlan

• Special Guest Stars: Walter Koenig (Oro), Alexandra Bastedo (Idona)
• Written By: Mort Forer & Marion Waldman
• Directed By: Joseph L. Scanlan

• Special Guest Star: Stephen Young (Dr. Chris Trask)
• Supporting Cast: Budd Knapp (Dr. Martin Trask), Meg Hogarth (Dr. Jean Pelletier), Bill Kemp (Captain), Michael Zenon (Commander), David Mann (Astrogator), William Osler (The Computer Host)
• Written By: Paul Schneider & Martin Lager
• Directed By: George McCowan

• Special Guest Star: Donnelly Rhodes (Roloff)
• Supporting Cast: Pat Collins (Serina), Leo Leyden (Brant), Dino Narizzano (Dumal), Jeff Toner (Jardy)
• Written By: Helen French & Martin Lager
• Directed By: Joseph L. Scanlan

• Special Guest Star: Walter Koenig (Oro)
• Supporting Cast: Pat Moffatt (Tau Zeta Voice), Phillip Stephens (Tau Zeta Operator), Jim Barron (Computer Voices), William Osler (The Computer Host)
• Written By: Alex C. James
• Directed By: Francis Chapman

• Special Guest Star: Edward Andrews (Dr. Linus Farthing)
• Supporting Cast: Linda Sorensen (McBride), Allen Stewart-Coates (Computer Voices), William Osler (The Computer Host)
• Written By: Douglas Hall
• Directed By: Ed Richardson

• Special Guest Stars: William Hutt (Pete), Antoinette Bower (Heather)
• Supporting Cast: Alan McRae (Callisher), John Friesen (Keeble), William Osler (The Computer Host)
• Written By: Norman Klenman
• Directed By: Bill Davis

• Special Guest Star: Ivor Barry (Chief Masters)
• Supporting Cast: Nuala Fitzgerald (Reena), Richard Alden (Mike), Diane Dewey (Technician), William Osler (The Computer Host)
• Written By: Martin Lager
• Directed By: Joseph L. Scanlan

• Written By: George Salverson

• Written By: John Meredyth Lucas
• From a Story By: Alan Spraggett