as T. Mosley Thorpe
as Peter M. Blainey
as Silas Jenkins, Justice of the Peace
as Julius Hofbauer, Music Publisher
as Siegfried Hammerschlag
as Detective Hank Slade
as Sergeant Fritz
as Maurice Giraud
as Izzy Wright
as Hugh Herbert (uncredited)
as Herbert Pearson
as Killigrew Shaw
as Marcus P. Throckmorton
as Horatio Gillingwater
as Quimby
as Corey Pratt
as Frederick Healy
as Mr. J. August Freytag
as Professor Twingle
as Henry I. Dibble Jr. / Faith Dibble / Hope Dibble / Charity Dibble / Prudence Dibble / Mrs. Henry I. Dibble Jr. / Henry I. Dibble Sr.
as Rocky Plummer
as Harvey Wilson
as Uncle Ferdinand
as Cedric Ames
as Snout
as Charlie
as Hubert Worthington Clippe
as Himself (uncredited)
as Professor Ross
as Junior Ashcraft
as Self
as Joe 'Poppa' Frink
as Hotel House Detective
as Elmer
as Silas Jenkins / Maurice Giraud (archive footage) (uncredited)
as Hugh
as Feisal
as Angus McPherson
as John B. Radway
as Colonel Fitch
as Hugo Wetzel
as Benton
as Pop Loring
as Lemuel P. Twine / Abner Twine / Colonel Cladius Zebediah Twine
as Kelly
as Barnett
as Rupert Rockingham
as Toto
as Joe Ward
as Chester Marshall
as Hubert Abercrombie Gumm
as Aaron Goss
as Adam Spiggott
as Professor
as McNellis
as George Pierce
as Hymie Schwartz
as Timothy Brewster
as Hugh Herbert
as Ed Rathburn
as Hugh Sherlock, playwright
as Eustace P. Trumble
as Hubert
as Hotstetter
as Valet
as Chinaman
as Charlie Bowers
as Doctor
as Mr. Trumball
as Liewellyn Simmons
as Manny Wales
as P.G. Grimble
as Thomas J. Jesse
as Joe Austin
as Hugo Twist / Elizabeth Twist
as Homer Bronson
as Detective Riley
as Mr. Penny
as Aeneas Phinney
as Eli Hobbs
as Detective
as Ferdinand Farraday
as Secretary of the Treasury
as Luther Haines
as Elmer Whippet / Oscar Whippet
as Harvey Bates
as Hugh 'Hughie' Herbert
as Ezra Ounce
as Tourist
as Filbert Fillmore
as Himself
as Hughie Hawkins
as Mousey Johnson
as Mr. Penn
as Aunt Fanny / Dave McGurk alias Dave the Drip
as Elmer 'Picklepuss' Burns