Watch Lost in Space Online (1965)

Where to watch “Lost in Space” (1965) online legally? See US streaming options first, plus English-region fallbacks.

Lost in Space first aired in 1965 • originally associated with CBS • 3 seasons • 83 episodes • around 60 minutes per episode • status: Ended.

If you searched for “watch Lost in Space online” (1965), the safest approach is to verify legal availability in your region (US first, then English-region fallbacks).

It sits in the Sci-Fi & Fantasy, Comedy space, which helps set expectations for tone and pacing.

Ratings vary by audience taste—check the synopsis and cast to see if it matches what you like.

This page includes season navigation, episode list, cast, trailer (when available), and legal provider hints to help you decide quickly.

Synopsis

The space family Robinson is sent on a five-year mission to find a new planet to colonise. The voyage is sabotaged time and again by an inept stowaway, Dr. Zachary Smith. The family's spaceship, Jupiter II, also carries a friendly robot who endures an endless stream of abuse from Dr. Smith, but is a trusted companion of young Will Robinson

Keywords

spacecraft, future, space, alien planet, anxious.

Stills

Similar series

Futurama, Wander Over Yonder, Mork & Mindy, Star Trek: Prodigy, Final Space, Mystery Science Theater 3000, Mystery Science Theater 3000, Hyperdrive.

Main cast

Guy Williams

as Dr. John Robinson

June Lockhart

as Dr. Maureen Robinson

Mark Goddard

as Major Don West

Marta Kristen

as Judy Robinson

Angela Cartwright

as Penny Robinson

Bill Mumy

as Will Robinson

Jonathan Harris

as Dr. Zachary Smith

Dick Tufeld

as Robot B-9

Bob May

as Robot B-9

Official trailer

There’s no trailer available for this series right now.