Quick access

Moviefone Weekly newsletter Awards coverage Highlights
Movies
All Movies In Theaters Coming Soon Release Calendar Christmas Movies 2026 Movie Charts Box Office Movie Reviews By Genre By Keyword
TV Shows
All TV Shows TV Charts TV Reviews By Genre By Keyword
Streaming
Streaming Now What to Watch Streaming Movies Streaming TV Shows Free Movies
News
All News Movie News TV News Celebrity News News Archive
Videos
All Videos Movie Trailers Movie Clips TV Trailers TV Clips Moviefone TV Moviefone TV Episodes Made in Hollywood
& More
Showtimes & Tickets Movies Near Me Movie Theaters Celebrities Highlights Newsletter Awards Movie Trivia
TRENDING
'Avengers: Doomsday' Trailer 'Dune: Part Three' Trailer 'Shrek 5' Teaser Trailer 'Spider-Man: Brand New Day' Trailer
STREAMING
Netflix Prime Video Disney+ HBO Max Hulu Peacock Paramount+ Apple TV Starz AMC+ Tubi Pluto TV Crunchyroll MGM+
An Unknown Substance poster

An Unknown Substance Cast & Characters

Below is the full crew.

38m
Movie Trailers
Movie Trailers
Key crew
Director
Steven Leckart
Producers
Steven Leckart , Orlando von Einsiedel , Ben J. Murphy , Michael Tamburrino , Annie Fairman , Meghan McCain , Joshua Altman
Cinematography
Steven Leckart
Editor
Bridget Arnet

Crew by department

10 crew members

Production

Annie Fairman
Producer
Ben J. Murphy
Producer
Michael Tamburrino
Producer
Orlando von Einsiedel
Producer
Steven Leckart
Producer
Joshua Altman
Executive Producer
Meghan McCain
Executive Producer