Characters played by Roy Thinnes
Dr. James Whitman
Characters played by Luther Adler
Dr. Bernard Altman
Characters played by Pete Duel
Casey T. Poe
Characters played by John Rubinstein
Randell File
Teddy
the Student Addict
Characters played by Michael C. Gwynne
Blaine
Pusher
Characters played by Joy Bang
Kendell
Characters played by Norman Alden
Sheriff Glenn
Characters played by Barry Brown
Fritz
Characters played by Katherine Justice
Persephone
Characters played by Marion Ross
Mrs. Pilgrim
Characters played by Gilbert Green
Dr. Lewis
Characters played by Shannon Farnon
Ellen
Characters played by David Alan Bailey
Weasel
Characters played by John Lasell
Maxwell
Characters played by Danny Smaller
Dariny
Characters played by Michael Laird
Michael
Characters played by The Staple Singers
Themselves
Characters played by Lynn Hamilton
Beatrice
a Therapy Group Member
Characters played by Jackie Burroughs
Jane
a Therapy Group Member
Characters played by Gloria Manon
Cathy
a Therapy Group Member
Characters played by Phillip Pine
Don
a Therapy Group Member
Characters played by Virginia Vincent
Mary
a Therapy Group Member
Characters played by George Sperdakos
Art
a Therapy Group Member
Characters played by Jere Burns
Steve
a Therapy Group Member
Characters played by Brenda Vaccaro
[no data]
Characters played by Clu Gulager
Frank Halloran
Characters played by Jim Hutton
Martin's father
Characters played by Pamelyn Ferdin
[no data]
Characters played by Stanley Kamel
Homer Cling
Characters played by Reni Santoni
Eric
Characters played by Bruce Glover
Stan Brewster
Characters played by Jill Haworth
Diane Lonecloud
Characters played by Jeff Corey
[no data]
Characters played by Katherine Woodville
Martin's mother
Characters played by Paul Carr
[no data]
Characters played by Jay Silverheels
Larrabee - Medicine Man
Characters played by Peter Brocco
[no data]
Characters played by Melendy Britt
[no data]
Characters played by Kiel Martin
Jo Jo Poole
Characters played by Jonathan Daly
[no data]
Characters played by Carl Reindel
Larry
Characters played by Stephen R. Hudis
Martin Dalton
Characters played by Joan Darling
Mary Halloran
Characters played by B.J. Mason
Oxley Kitt
Characters played by Iris Korn
File's Mother
Characters played by Jesse Wayne
Randell's buddy
Characters played by David Astor
[no data]
Characters played by Robert R. Cannon
Lester
Characters played by Don Lorbett
Counterman
Characters played by Carol Speed
(uncredited)
Characters played by Michael Long
Self