revival is only temporary. Klaatu tells Barnhardt's assembled scientists that an interplanetary organization has created a police force of invincible robots like Gort. "In matters of aggression, we have given them absolute power over us". Klaatu concludes, "Your choice is simple: join us and live in peace, or pursue your present course and face obliteration. We shall be waiting for your answer". Klaatu and Gort depart in the saucer. Cast Michael Rennie as Klaatu Patricia Neal as Helen Benson Hugh Marlowe as Tom Stevens Sam Jaffe as Professor Jacob Barnhardt Billy Gray as Bobby Benson Frances Bavier as Mrs. Barley Lock Martin as Gort Top broadcast journalists of their time, Elmer Davis, H.V. Kaltenborn, Drew Pearson, and Gabriel Heatter, had cameo roles. Spencer Tracy and Claude Rains originally were considered for the part of Klaatu. Metaphors In a 1995 interview, producer Julian Blaustein explained that Joseph Breen, the film censor installed by the Motion Picture Association of America at the Twentieth Century Fox studios, balked at the portrayal of Klaatu's resurrection and limitless power. At the behest of the MPAA, a line was written into the script; when Helen asks Klaatu whether Gort has unlimited power over life and death, Klaatu explains that Gort has only revived him temporarily: "that power is reserved to the Almighty Spirit." Of the elements that he added to Klaatu's character, screenwriter Edmund North said, "It was my private little joke. I never discussed this angle with Blaustein or Wise because I didn't want it expressed. I had originally hoped that the Christ comparison would be subliminal." That the question even came up in an interview is proof enough that such comparisons did not remain subliminal, but they are subtle enough so that it is not immediately obvious to all viewers that those elements were intended to compare Klaatu to Jesus Christ. When Klaatu escapes from the hospital, he steals the clothing of a Maj. Carpenter, carpentry being the profession the Bible says Jesus learned from Joseph, his father. He presents himself as John Carpenter, the same initials as Jesus Christ (and borrowing a given name from one of his disciples, John). His previous actions are misunderstood, and he eventually is killed by military authority. At the end of the film, Klaatu, having risen from the dead, ascends into the (night) sky. Other parallels include: his coming to Earth with a message for all mankind;