His Royal Slyness
27m·Comedy
A young adventurer trades places with a European prince and falls in love above his station.
| Actor | Role |
|---|---|
 Harold LloydThe American Boy | The American Boy |
 Mildred DavisPrincess Florelle | Princess Florelle |
 Harry 'Snub' PollardPrince of Rochquefort | Prince of Rochquefort |
 Gus LeonardKing Razzamatazz / Bolshevik orator | King Razzamatazz / Bolshevik orator |
 Noah YoungThe Prince's tutor | The Prince's tutor |
| RRoy BrooksCourtier | Courtier |
 William GillespieCourtier | Courtier |
 Helen GilmoreQueen Razzamatazz | Queen Razzamatazz |
 Gaylord LloydThe Prince | The Prince |
 Marie MosquiniThe Vamp | The Vamp |
 Charles StevensonMan who won't buy books | Man who won't buy books |
 Robert Emmett O'Connor(uncredited) | (uncredited) |
 Wally HoweNot listed | Not listed |
 Estelle HarrisonNot listed | Not listed |
 Sammy BrooksNot listed | Not listed |