Lassie: Joyous Sound

Larry Pennell

Keith Holden

Pamelyn Ferdin

Lucy Baker

Jay W. MacIntosh

Elaine Baker

John Lasell

Dr. Robbins

Kevin Brodie

Dark-Haired Surfer

Jay North

Jim (Curly-Haired Surfer)

Jon Lormer

Man With Yorkshire Terrier (uncredited)