Robert Woolsey

as Robert Woolsey

as Addington Ganzy

as Gilbert Simpson

as Ginger Dandy

as Elmer Dugan

as Newton

as Aloysius C. Whittaker

as Alexander

as Dr. Dudley

as Spider Robbins

as Bob

as Slick Foster

as Ned Lovett

as Eggbert G. Higginbothom

as Julius Caesar

as Roscoe Horne

as Julius Swift

as Pierre Potkin

as Hercules Grub

as Prof. Cunningham

as Zander Ulysses Parkhurst

as Dr. J. Dockweiler Droop

as Claude Horton

as Self

as Dr. Philip 'Painless' Pennington

as Self

as Self (archive footage)

as Self

as Self