Donald O'Connor

Character: William Waldo Winfield

Charles Coburn

Character: Professor Jason Hartley

Gloria DeHaven

Character: Sarah Jane Winfield

Joshua Shelley

Character: Arnold Schultze

Barbara Brown

Character: Professor Sophia Boland

Jim Davis

Character: Joe Tascarelli

James Brown

Character: Tony Cresnovitch

Patricia Alphin

Character: Mrs Tascarelli