Lost In Space Cast & Guest Stars
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Guy Williams
Professor John Robinson / Anti-matter John Robinson
84 episodes
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June Lockhart
Maureen Robinson
84 episodes
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Mark Goddard
Major Don West / Anti-matter Don West
84 episodes
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Marta Kristen
Judy Robinson
84 episodes
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Jonathan Harris
Dr. Zachary Smith / Zeno / Daddy Zach
83 episodes
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Angela Cartwright
Penny Robinson
84 episodes
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Bill Mumy
Will Robinson
84 episodes
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Bob May
The Robot (body)
82 episodes
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Dick Tufeld
The Robot (voice)
84 episodes
Guest Stars
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Fritz Feld
Mr. Zumdish
3 episodes
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Dee Hartford
Verda / Nancy Pi Squared
3 episodes