 Writer Raymond William Stedman believes that the differences between the comic-book and film versions of Captain America were "for the better" as, for example, the hero did not have to sneak out of an army base every time he needed to change identities.Dale Van Sickel was the "ram rod" of the stunt crew, doubling Dick Purcell as Captain America.Ken Terrell doubled George J. Lewis and Fred Graham doubled Lionel Atwill.