A former race car driver-turned-writer attempts to expose a ruthless, womanizing Grand Prix racer. A film constructed around footage shot of actual Grand Prix races in Europe.
| Actor | Role |
|---|---|
 Mark DamonStephen Children | Stephen Children |
 William CampbellJoe Machin | Joe Machin |
 Luana AndersHenrietta "Henny" Weston | Henrietta "Henny" Weston |
 Marie VersiniSesia Machin | Sesia Machin |
 R. Wright Campbell Robert Machin | Robert Machin |
 Patrick MageeSir William Dragonet | Sir William Dragonet |
 John McLarenLotus Team Manager | Lotus Team Manager |
 Milo QuesadaItalian Driver | Italian Driver |
| AAnthony MarshAnnouncer | Announcer |
 Margrete RobsahmLea Anderson | Lea Anderson |
 Christina GreggDaphne | Daphne |
 Béatrice AltaribaMonique | Monique |
 Roger CormanMan Outside Monaco Hotel (uncredited) | Man Outside Monaco Hotel (uncredited) |
 Francis Ford Coppola(uncredited) | (uncredited) |
 Bruce McLarenBruce McLaren (uncredited) | Bruce McLaren (uncredited) |
 Jim ClarkJim Clark (uncredited) | Jim Clark (uncredited) |