Brian Geraghty is the latest addition to the cast of Chris Hemsworth’s upcoming crime thriller Kockroach, and the role he will play is still being kept under wraps. The film already includes Taron Egerton, Alec Baldwin, Zazie Beetz and Rachel Sennott, with Hemsworth leading the project.
Kockroach is directed by Matt Ross and is based on William Lashner’s 2007 novel of the same name, which he published under the pen name Tyler Knox. The story follows a cockroach transformed into a human in 1950s New York, then rising through the city’s criminal and social circles in a dark re-imagining of Franz Kafka’s 1915 novella Metamorphosis.
The casting update matters because the film has already weathered one major shift. The studio first announced Channing Tatum as the star, but he exited because of scheduling conflicts before Hemsworth took over the lead. Now Geraghty has joined a lineup that keeps expanding as the movie is being shot in Australia, where production is underway without an official teaser, trailer or release date.
Hemsworth gave followers the first look at the film in mid-April, posting a behind-the-scenes photo on X on April 14, 2026 that read, “Kockroach. Day 1 ? /54okThPHXl.” For a project built on transformation, that image matched the moment the production seems to be in now: the cast is locked in, the camera is rolling, and the finished shape of the movie is still hidden.
