Marcus Welby, M.D.
Kathleen Faverty / Lynn Baker
Janet Blake / Janet Blake Kiley
Dr. Marcus Welby
Dr. Steven Kiley
Consuelo Lopez
Nurse Anne MacAndrews / Carolyn Kingsley
Loretta McKenna / Ellie Hill
Sandy Porter / Mrs. Elizabeth Carstairs
Marty Siegel / Mike Rossowitz
Tom Dalton / Father Kling
John Kalscheur / Dave Tillerman
Anesthesiologist / Jury Foreman (uncredited)
Matt Callan / Carter
Susan / Mary Ann Graham
Shelia / Cara Anderson
Dr. Seth Rollins / Dr. Chet Larkin
Jack Walthers / Alfred Mercer
Orderly / Intern
Nurse Cohen / Nurse Irwin
Louise Janis / Ruthie
Myra Sherwood
Ruth Ann Adams / Judy Graham
Margaret Loring / Nancy Mason
Mrs. Baker