After his defeat at the hands of "Spider" Flynn, the welterweight champion of Europe, boxer Jimmie Dolan and his trainer, Thomas Jefferson Jones, leave for a principality near Paris. Having lost all their money on the fight, Jimmie accepts Count Conrad's offer to impersonate Prince Frederick in return for a large sum of money.
| Actor | Role |
|---|---|
 Jack MulhallJimmy Dolan | Jimmy Dolan |
 Noble JohnsonThomas Jefferson Jones | Thomas Jefferson Jones |
| JJulia RayAlicia | Alicia |
| AAlbert MacQuarrieCount Conrad (as Al MacQuarrie) | Count Conrad (as Al MacQuarrie) |
 Harry MannThe King | The King |
 Ernest ShieldsPrince Frederick | Prince Frederick |
 Francis McDonald'Spider' Flynn (as Francis MacDonald) | 'Spider' Flynn (as Francis MacDonald) |
| GGrace McLeanMlle. D'Orsay (as Grace MacLean) | Mlle. D'Orsay (as Grace MacLean) |