Steve Barclay

Ted Cummings (as Stephen Barclay)

Eddie Wheeler

Conduttore della biga

Marco Adinolfi

George Whitmore

Stefano Carli

Bruce Landy

Kenny Revere

Captain James Glover

Smiley Gordon

Tracy

Georges Villiers, duc de Buckingham

Stefano

Cap. Droet

Jeff Regan

Tom's Classmate (uncredited)

Flier (uncredited)

Marco

Paolo

Naval Officer (uncredited)