The 84-year-old legend muses about the possibility of reinhabiting Capt. Kirk ('How would they handle it, in science-fiction terms? I'm older, I'm heavier'), Harrison Ford's return to 'Star Wars' ('He needed a new airplane'), his seances with DeForest Kelley ('He's haunting a southern mansion') and his feud with George Takei as 'Star Trek' turns 50.

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