| Cast list | | John Forsythe | as | Dr. Robert Kier | | Pat Harrington Jr. | as | Joe Tate | | Katherine Woodville | as | Claire Parlini | | Season Hubley | as | Ann Kilmer | | Anthony Zerbe | as | Dr. Albert Scanlon | | Beverly Garland | as | Laura Kier | | John McIntire | as | Dr. Ernest Wilson | | Yvonne Gilbert | as | Betty Kier | | Louise Sorel | as | | | Lance Kerwin | as | Kennedy Brown | | Michael C. Gwynne | as | Dr. Anton Balinowski | | Shelly Juttner | as | Nikki Kier | | Christian Juttner | as | Vince Kier | | Ellen Weston | as | Barbara, Secretary to Dr. Kier | | Julio Medina | as | |
| | Crew list: | | Tom Gries (Director) | | Howard Dimsdale (Writer) | | John Furia (Writer) |
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