Lost in Space (1965–1968)
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Welcome Stranger 

The Robinsons meet a fellow Earth explorer who is also lost in space. They help him repair his ship and ask him to take Will and Penny home.



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Episode cast overview:
Will Robinson (as Billy Mumy)


Will's open radio signal brings in Jimmy Hapgood, a fellow lost traveler who left Earth back in 1982 on a one-man ship he calls Travelin' Man. It's a good little craft that could make it back to Earth, giving Prof. Robinson the idea of sending him back along with Will and Penny. That suits Dr, Smith just fine but with himself in Will and Penny's place. Meanwhile, an incomplete decontamination of Travelin' Man spawns trouble. Written by statmanjeff

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Not Rated | See all certifications »



Release Date:

20 October 1965 (USA)  »

Company Credits

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Technical Specs


Sound Mix:

(RCA Sound Recording)

Aspect Ratio:

1.33 : 1
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Did You Know?


When Hapgood talks about "dogies," he's using an old cowboy word for baby calves, not dogs. See more »


(at around 9 mins) The edge of the painted backdrop isn't obscured by the rocks. See more »


Dr. Zachary Smith: [invited to join the scouting party] Me? Out there? Defenseless?
Prof. John Robinson: Oh, we all have our guns.
Dr. Zachary Smith: What use are they going to be against a monster who eats electrons for breakfast?
See more »

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User Reviews

Mr & Mrs Robinson Steal This Bonanza In Space Hour
8 February 2015 | by See all my reviews

A space cowboy visits the alien planet.

I fine episode placed in a difficult spot in the series. The five episodes before this were epics in the true sense of the word, epics that can be called some of the greatest hours of TV ever made. Welcome Stranger is such a change of show, more a Bonanza In Space hour...very good but no epic.

But if you can past this small issue you will have a blast with this hour. Despite the high quality guest star playing the space cowboy it is actually Mr and Mrs Robinson that get all the best bits in this hour...like when they question if they had the right to bring kids along on a space flight.

Jonathan Harris as Smith is still fine here but the early scene of him being almost shocked by the cowboy's ship on the radar, and a later scene as well, indicates that character has changed a tiny bit even in this sixth episode.

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