Michael Callan

Dr. Alec Considine

Dean Jones

Dr. Lew Worship

Telly Savalas

Dr. Dominic Riccio

Stefanie Powers

Gloria Mead Worship

Barbara Eden

Nurse Laura Rogers

Kaye Stevens

Nurse Didi Loomis

George Segal

Dr. Tony "Shiv" Parelli

Inger Stevens

Nancy Terman

Gregory Morton

Dr. Granchard

George Furth

Dr. Phil Osterman

Greg Morris

Dr. Pete Clarke

Lee Patrick

Mrs. Hitchcock

Eddie Ryder

Dr. Walters

Ellie Wood Walker

Madeline Osterman

Michael Fox

Dr. Arthur Hellman

Alan Reed Jr.

Dr. Risner

Gordon K. Kee

Intern

James Mathers

Freddie

Rusty Lane

Dr. Morton Gardner

Adrianne Ellis

Nurse

Michael Vandever

Beep

Sue Ane Langdon

Stella

Adam Williams

Wolanski

Dawn Wells

Bobbie

Peter Hobbs

Dr. Duane

Marianna Hill

Sandy

Ken Mayer

Detective Harper

David Winters

Hood

Norman Cole

Larry

Ken Drake

Parking Lot Attendant

Charles Lane

Connors

Dee Carroll

Nurse Arlene Shaw (uncredited)

Bob Crane

Drunken Prankster at Baby Shower (uncredited)

Linda Lee

Student Nurse (uncredited)

Dal Jenkins

Como