McDoo
Charles Murray
The Wild Man
Gus Pixley
Rooly, Pooly, Dooly
Edward Dillon
Guppy (of Guppy and Fugg)
Clarence Barr
Fugg (of Guppy and Fugg) / Sideshow Patron
Bud Duncan
Actress in The Rise & Fall of McDoo
Kathleen Butler
Florence Lee
Miss Smart / Sideshow Patron
Dorothy Gish
Policeman / In Audience
William J. Butler
In Audience (uncredited)
Lionel Barrymore
Writer
William Beaudine
Director
Dell Henderson