Grant Williams as Scott Carey

Randy Stuart as Louise Carey

April Kent as Clarice Bruce

Paul Langton as Charlie Carey

Raymond Bailey as Doctor Thomas Silver

William Schallert as Doctor Arthur Bramson

Frank J. Scannell as Barker

Helene Marshall as Nurse

Diana Darrin as Nurse

Billy Curtis as Midget

Charles Perry as Spieler (uncredited)

Chet Brandenburg as Balloon Vendor (uncredited)

John Hiestand as KIRL TV Newscaster (uncredited)

Joe LaBarba as Joe (uncredited)

Perk Lazelle as Doctor (uncredited)

Lock Martin as Giant (uncredited)

Regis Parton as Minor Role (uncredited)

Luce Potter as Violet (uncredited)