Hank Martin
Will Rogers
King Arthur / Inventor
William Farnum
Emile le Poulet / Clarence
Frank Albertson
Alisande / Woman in Mansion
Maureen O'Sullivan
Merlin / Doctor in Mansion
Brandon Hurst
Queen Morgan le Fay / Evil Sister in Mansion
Myrna Loy
Sagramor / Butler in Mansion
Mitchell Harris
King's Knight (uncredited)
Stanley Blystone
Sneezing Man at Radio Station (uncredited)
Heinie Conklin
Old Hag in Dungeon (uncredited)
Louise Emmons
Novel
Mark Twain
Director
David Butler
Writer
Owen Davis
William M. Conselman