Cliff Robertson
Lee Tucker
Joel Grey
Franklin Wills
Dorothy Tristan
Janet Tucker
Elizabeth Wilson
Dr. Anna Willson
George Voskovec
Dr. Nicholas Holnar
Ron Weyand
Dr. Philip Fusco
Peter Masterson
Willie Younger
Lane Smith
Ted Ronan
Joe Ponazecki
Dan Lloyd
Christopher Allport
Richie Tom Keating
Patricia Hawkins
Diana Spenser
Richard Venture
Man in Motel
Dianne Hull
Maggie Dawson
Gil Gerard
Donald Forbes
Robert Dryden
Mr. Dawson
Alice Drummond
Mrs. Dawson
Richard McKenzie
Sam Gallagher
Brendan Fay
Father Connally
Clarice Blackburn
Mrs. Brennan
Nicholas Pryor
Paul Kearney
Josef Sommer
Pete Russell
Shawn Campbell
Steve Barron
Ben Slack
Ronnie
Clarence Felder
Coach
Penelope Milford
Evelyn Moore
Bruce French
Check-Out Man
Loretta Fury
Mrs. Segretta
Roy Mason
Plant Manager
James Galvin
Man in Plant
Carson Grant
Swimmer (uncredited)