Babylon 5: Thirdspace poster

Babylon 5: Thirdspace

"One mistake. One mistake out of so many. So many others."

Movie 1998 1h 34m 6.7 /10
Directed by Jesús Salvador Treviño

Babylon 5: Thirdspace follows the crew after they recover a derelict vessel from hyperspace. They bring it to Babylon 5 for study, expecting a routine salvage, but the discovery sets off a chain of unsettling events. A creeping influence begins to prey on minds, and people in the station start... Read more

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Streaming availability last verified: January 27, 2026

About Babylon 5: Thirdspace

Babylon 5: Thirdspace follows the crew after they recover a derelict vessel from hyperspace. They bring it to Babylon 5 for study, expecting a routine salvage, but the discovery sets off a chain of unsettling events. A creeping influence begins to prey on minds, and people in the station start acting as if a hidden, alien intelligence is seeping into their thoughts. What seems a straightforward salvage operation spirals into a confrontation with an ancient threat from beyond known space, a presence linked to a place called Thirdspace. As the investigation unfolds, loyalties are tested and the boundary between science and superstition grows murky, underscoring the cost of curiosity for a crew already juggling politics and war.

Directed by Jesús Salvador Treviño, Thirdspace extends the Babylon 5 universe created by J. Michael Straczynski and arrived in 1998 as a feature length television movie. It builds on the series ongoing plot threads and brings back familiar characters, while testing new alien lore.

Thirdspace stands out for fans as a cinematic expansion of a TV saga, with larger scale visuals and a deeper myth arc. The story's alien menace and its eerie imagery contribute to the franchise's sense of ancient conspiracies at stake across Babylon 5 lore. Its design and effects push the boundaries of the TV budget, and the score reinforces the sense of awe and danger that defines the episode.

Critics noted the film balances action with science fiction concepts, delivering tense sequences and ongoing political tensions aboard Babylon 5. Key themes include the dangers of exposing crew to unknown powers, the ethics of contact with alien intelligence, and leadership under pressure. The tone blends military duty with metaphysical questions about humanity when faced with a threat beyond comprehension.

Box Office: As a television feature, Thirdspace did not see a conventional theatrical release and publicly reported gross figures are not available. It aired on television and later found life on home video, making its earnings difficult to track.

Details

Release Date
July 17, 1998
Runtime
1h 34m
User Ratings
137 votes
Type
Movie
Genres
Action, Science Fiction, Adventure
Country
United States
Collection
Babylon 5 Collection
Studio
Babylonian Productions +1 more
External Links
View on IMDB

Cast

Bruce Boxleitner

Bruce Boxleitner

Capt. John J. Sheridan

Claudia Christian

Claudia Christian

Susan Ivanova

Mira Furlan

Mira Furlan

Delenn

Shari Belafonte

Shari Belafonte

Elizabeth Trent

Stephen Furst

Stephen Furst

Vir Cotto

Patricia Tallman

Patricia Tallman

Lyta Alexander

Jeff Conaway

Jeff Conaway

Zack Allen

Clyde Kusatsu

Clyde Kusatsu

Bill Morishi

William Sanderson

William Sanderson

Deuce

Josh Coxx

Josh Coxx

Lt. David Corwin

Director: Jesús Salvador Treviño

Written by: J. Michael Straczynski

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Frequently Asked Questions

Babylon 5: Thirdspace is not currently available to stream, rent, or buy online in the US. Check back later for updates.

With a rating of 6.7/10 from 137 viewers, Babylon 5: Thirdspace is considered decent by viewers and may be worth checking out.

Babylon 5: Thirdspace follows the crew after they recover a derelict vessel from hyperspace. They bring it to Babylon 5 for study, expecting a routine salvage, but the discovery sets off a chain of unsettling events. A creeping influence begins to prey on minds, and people in the station start ac...

Babylon 5: Thirdspace stars Bruce Boxleitner, Claudia Christian, Mira Furlan, Shari Belafonte, and Stephen Furst.

Babylon 5: Thirdspace was directed by Jesús Salvador Treviño.

Babylon 5: Thirdspace was released on July 17, 1998.

Babylon 5: Thirdspace is a Action, Science Fiction, and Adventure film.

Bruce Boxleitner plays Captain John J. Sheridan in Babylon 5: Thirdspace. He leads the Babylon 5 crew as the story unfolds.

The film features Claudia Christian as Susan Ivanova, Mira Furlan as Delenn, Shari Belafonte as Elizabeth Trent, Stephen Furst as Vir Cotto, and Bruce Boxleitner as Capt. John J. Sheridan. These actors bring the central Babylon 5 crew to life in the film.

Susan Ivanova discovers a derelict spaceship in hyperspace and has it towed back to Babylon 5. Soon, strange events unfold as telepathic aliens from thirdspace start taking over people.

Jesús Salvador Treviño directed Babylon 5: Thirdspace. The story was created by J. Michael Straczynski.