Ηθοποιοί επεισοδίου
Guy WilliamsDr. John Robinson
June LockhartDr. Maureen Robinson
Mark GoddardMajor Don West
Marta KristenJudy Robinson
Angela CartwrightPenny Robinson
Bill MumyWill Robinson
Jonathan HarrisDr. Zachary Smith
Dick TufeldRobot B-9
Bob MayRobot B-9
Michael FoxCybernetic Leader / Supreme Brain (voice)
Sue EnglandSpace Control Officer O-3 (voice)