Tommy Westphall

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Tommy Westphall, portrayed by Chad Allen, is a minor character from the drama television series St. Elsewhere, which ran on NBC from 1982 to 1988. His father is Dr. Donald Westphall (played by Ed Flanders), who has a leading role in the series. Tommy, who is autistic, played an expanded role in St. Elsewhere's final episode, "The Last One". The most widely accepted interpretation of the episode is that the whole storyline of St. Elsewhere took place entirely within Tommy Westphall's imagination. As characters from St. Elsewhere have appeared on other television shows and those shows' characters appeared on more shows, and so on, a "Tommy Westphall Universe" hypothesis (postulated by Dwayne McDuffie) argues that a significant amount of fictional episodic television exists within a fictional universe imagined by Tommy Westphall.

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