His Royal Slyness

Harold Lloyd

The American Boy

Mildred Davis

Princess Florelle

Harry 'Snub' Pollard

Prince of Rochquefort

Gus Leonard

King Razzamatazz / Bolshevik orator

Noah Young

The Prince's tutor

Roy Brooks

Courtier

William Gillespie

Courtier

Helen Gilmore

Queen Razzamatazz

Gaylord Lloyd

The Prince

Marie Mosquini

The Vamp

Charles Stevenson

Man who won't buy books

Robert Emmett O'Connor

(uncredited)

Wally Howe

Estelle Harrison

Sammy Brooks