Georges Villiers, duc de Buckingham
Conduttore della biga
Stefano
George Whitmore
Marco Adinolfi
Cap. Droet
Jeff Regan
Smiley Gordon
Tracy
Ted Cummings (as Stephen Barclay)
Eddie Wheeler (as Stephen Barclay)
Captain James Glover
Tom's Classmate (uncredited)
Kenny Revere
Flier
