Judy sets out to find Maureen, while Will and Penny lead an expedition to the caves, seeking an energy alternative that could launch the remaining Jupiter spacecraft. "Dr. Smith" pursues a new escape plan, having kidnapped Maureen.
- This article is a stub, or very short article, that is most likely incomplete and needs expansion.
- Molly Parker as Maureen Robinson
- Toby Stephens as John Robinson
- Maxwell Jenkins as Will Robinson
- Taylor Russell as Judy Robinson
- Mina Sundwall as Penny Robinson
- Ignacio Serricchio as Don West
- Parker Posey as "Dr. Smith"
- Brian Steele as The Robot
Other Jupiter crewEdit
- Raza Jaffrey as Victor Dhar
- Ajay Parikh-Friese as Vijay Dhar
- Sibongile Mlambo as Angela Goddard
- Cary-Hiroyuki Tagawa as Hiroki Watanabe
- Kiki Sukezane as Aiko Watanabe
- Amelia Burstyn as Diane
- Yukari Komatsu as Naoko Watanabe
- Viv Leacock as Reese
- Veenu Sandhu as Prisha Dhar
- Rowan Schlosberg as Connor
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