Fredric March
Dr. Joseph Pearson
Ben Gazzara
Dr. David Coleman
Dick Clark
Dr. Alexander
Ina Balin
Cathy Hunt
Eddie Albert
Dr. Charles Dornberger
Phyllis Love
Mrs. Elizabeth Alexander
Edward Andrews
Jim Bannister
Aline MacMahon
Dr. Lucy Grainger
Arthur Hill
Tomaselli
Rosemary Murphy
Miss Graves
Barnard Hughes
Dr. Kent O'Donnell
Joseph Bova
Dr. Shawcross
George Segal
Dr. Howard
Matt Crowley
Dr. Rufus
Dolph Sweet
Police Car Driver
Ella Smith
Physician
Nora Helen Spens
Physician (as Nora Helen Spens M.D.)
Robert Dahdah
Physician
Ronald Reagan
Narrator (voice)
Dick Button
Operating Intern