“The Greatest Threat Lies Within”
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Assassin Within (2026) – Official Trailer, Cast & Details
Assassin Within at a Glance
Assassin Within is a 2026 thriller, science fiction, mystery and action film helmed by Cengiz Dervis, starring Cengiz Dervis, Silvia Busuioc and Rachel Brownhill. It runs 1 hour 18 minutes and came out on September 1, 2026.
Watch the official Assassin Within trailer for free in 123Movies below.
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Storyline & Synopsis
A notorious assassin captured by an AI-controlled covert Agency, must navigate fractured versions of his identities to reach the system's hidden cores-and destroy it from within before his secrets are extracted.
Where “Assassin Within” Fits in the 123Movies Catalog
Frequently Asked Questions About Assassin Within
What is the release date of Assassin Within?
Assassin Within was released on September 1, 2026.
How long is Assassin Within?
Assassin Within runs 1 hour 18 minutes (78 minutes).
Who is in the cast of Assassin Within?
Assassin Within stars Cengiz Dervis as Leopar / Siberia / West End / East London / New Orleans, Silvia Busuioc as Aurelius, Rachel Brownhill as Anne and Daryl Jones as Agent 1. The cast also includes Lizzie Camp, Terry Weaver, Laynee Busse and Karan Sagoo.
Who directed Assassin Within?
Assassin Within was directed by Cengiz Dervis. The screenplay is credited to Cengiz Dervis.
What kind of movie is Assassin Within?
Assassin Within is listed on TMDB as a mix of thriller, science fiction, mystery and action.
Where can I watch the Assassin Within trailer?
You can watch the trailer for Assassin Within, "Assassin Within — Official Trailer", for free on this 123Movies page. It is embedded from YouTube.
What should I watch if I liked Assassin Within?
Movies TMDB recommends alongside Assassin Within include The Engineer (2023), Containment (2015), The International (2009), Chief of Station (2024) and Overdrive (2017).
Can I stream the full movie of Assassin Within on 123Movies?
No. 123Movies only shows official trailers and title information. Full movies are not hosted or linked on this site.
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