John Forsythe
— Dr. Robert Kier
Pat Harrington Jr.
— Joe Tate
Katherine Woodville
— Claire Parlini
Season Hubley
— Ann Kilmer
Anthony Zerbe
— Dr. Albert Scanlon
Beverly Garland
— Laura Kier
John McIntire
— Dr. Ernest Wilson
Yvonne Gilbert
— Betty Kier
Louise Sorel
Lance Kerwin
— Kennedy Brown
Michael C. Gwynne
— Dr. Anton Balinowski
Shelly Juttner
— Nikki Kier
Christian Juttner
— Vince Kier
Ellen Weston
— Barbara, Secretary to Dr. Kier
Julio Medina
Jay W. MacIntosh
Priscilla Garcia
Anne Newman Bacal
Stack Pierce
Jim Storm
Paul Mantee
Angela Elayne Gibbs
Casey MacDonald
Jim Boles
Dick Valentine
Jacqueline Weiss
Gavan O'Herlihy
Liam Dunn
— Mr. Addison
Bill McKinney
— Mr. Brown
