Reparto y equipo
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Gary CooperHoward Roark - Patricia NealDominique Francon
- Raymond MasseyGail Wynand
- Kent SmithPeter Keating
- Robert DouglasEllsworth Toohey
- Henry HullHenry Cameron
- Ray CollinsRoger Enright
- Moroni OlsenChairman
- Jerome CowanAlvah Scarret
- Paul HarveyOpera businessman (uncredited)
- Thurston HallBusinessman at party (uncredited)
- Harry WoodsQuarry superintendent (uncredited)
- Paul StantonDean who expels Roark (uncredited)
- Bob AldenNewsboy (uncredited)
- Tris CoffinToohey's secretary (uncredited)
- Roy GordonVice-President (uncredited)
- Isabel WithersSecretary (uncredited)
- Almira SessionsDominique's housekeeper at quarry (uncredited)
- Tito VuoloPasquale Orsini (uncredited)
- William HaadeWorker (uncredited)
- Gail BonneyWoman (uncredited)
- Dorothy ChristySociety woman (uncredited)
- Harlan WardeYoung man (uncredited)
- Jonathan HaleGuy Francon (uncredited)
- Frank WilcoxGordon Prescott (uncredited)
- Douglas KennedyReporter (uncredited)
- Pierre WatkinCortlandt official (uncredited)
- Selmer JacksonCortlandt official (uncredited)
- John DoucetteGus Webb (uncredited)
- John AlvinYoung intellectual (uncredited)
- King VidorDirección
- Henry BlankeProducción
- Ayn RandEscritor