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