Jonathan Harris

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Jonathan Harris Trivia

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  • Trivia

    • He was the first actor to receive a "Special Guest Star" credit; this was because his character was added to the series after the other characters' billing had been contractually set. Technically a regular and not a guest star, the credit means that he holds the world's record for making guest appearances in a single series - a record that is not likely to be broken in the near future.