Season 1, Episode 23 The Space Trader

The Robinsons are victimized by a huckster (Torin Thatcher) who will stop at nothing to get their equipment. John: Guy Williams. Maureen: June Lockhart. Don: Mark Goddard. Smith: Jonathan Harris. Penny: Angela Cartwright. Will: Billy Mumy. Judy: Marta Kristen.

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Guest Cast