In 1921, a young man, having read Mark Twain's classic novel of the same title, dreams that he himself travels to King Arthur's court, where he has similar adventures and outwits his foes by means of very modern inventions including motorcycles and nitroglycerine.
| Actor | Role |
|---|---|
 Harry MyersThe Yankee / Martin Cavendish | The Yankee / Martin Cavendish |
 Pauline StarkeSandy | Sandy |
 Rosemary ThebyQueen Morgan le Fay | Queen Morgan le Fay |
 Charles ClaryKing Arthur | King Arthur |
 William V. MongMerlin the Magician | Merlin the Magician |
 George SiegmannSir Sagramore | Sir Sagramore |
| CCharles GordonThe Page, Clarence | The Page, Clarence |