Ben 10: Alien Swarm

Where to Watch Ben 10: Alien Swarm (2009) (Legally)

Go hero one more time!
Nov 15, 2009 US 69 min PG
6.2 ★ ★ ★ ★ ★
386 votes
Where can I watch “Ben 10: Alien Swarm” legally?
We don’t host streams or downloads. Below are legal provider hints for the US region first, with a fallback for other English-speaking regions if available.

US providers

Provider data may be unavailable or changes often. Use the buttons to check legal availability quickly.

English-region fallback

No reliable provider listing found here. Use official sources or a legal aggregator in your country.

Where to watch “Ben 10: Alien Swarm” (2009) legally online? See US options first, with English-region fallbacks.

What to expect (spoiler-free)

Here’s what to expect from “ (2009), without spoilers.

Genre-wise, it leans into Action, TV Movie, Science Fiction, with a runtime around 69 minutes.

Cast highlights include Ryan Kelley, Galadriel Stineman, Nathan Keyes, Alyssa Diaz.

The listed certification for some regions is “ (ratings vary by country).

Topics & keywords

extraterrestrial technology, transformation, alien, based on cartoon, alien race, teen superhero, nanobots, based on tv series, cgi-live action hybrid

Official trailer

Watch the official trailer on YouTube

Plot

Ben and a mysterious girl from his past must prevent an alien threat from destroying the world.

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Gallery

Still from the movie Ben 10: Alien Swarm Still from the movie Ben 10: Alien Swarm Still from the movie Ben 10: Alien Swarm Still from the movie Ben 10: Alien Swarm Still from the movie Ben 10: Alien Swarm

FAQs

Where can I watch it legally?
We only share legal viewing options. Check the “Where to watch” box above for your region and verify on official listings.
Is it available for free?
Free availability depends on region, promotions, or ad-supported services. Always verify on legal providers—availability changes frequently.

Main cast

Ryan Kelley
as Ben Tennyson
Galadriel Stineman
as Gwen Tennyson
Nathan Keyes
as Kevin E. Levin
Alyssa Diaz
as Elena Validus
Herbert Siguenza
as Victor Validus
Barry Corbin
as Grandpa Max Tennyson
Dee Bradley Baker
as Big Chill / Humongousaur (voice)
Alex Winter
as Nanomech (voice)
Wendy Cutler
as Alien Chip Queen (voice)
Joyce Kurtz
as Computer (voice)