Viral Rehearsal Footage Reveals How Zach Cregger’s ‘Resident Evil’ Brought Its Merged Monster to Life
Zach Cregger’s ‘Resident Evil‘ has quickly become one of the year’s most talked-about horror releases, and much of that buzz comes from its creatures. The reboot tells an original story set during Umbrella’s initial T-Virus outbreak in Raccoon City, with Austin Abrams starring as Bryan alongside Paul Walter Hauser, Zach Cherry, and Kali Reis.
From the start, Cregger made it clear he wanted real monsters on set. He enlisted Legacy Effects and special effects legend Shane Mahan, whose credits include ‘The Shape of Water’ and ‘Godzilla: King of the Monsters’, as the film’s creature designer, according to Bloody Disgusting. Now fans are getting a rare peek at how one of the film’s strangest creatures came together. Behind-the-scenes rehearsal footage for the merged monster.
The short clip shows performers in a gym, strapped into harnesses that tie their bodies together as they practice moving as a single creature. Surrounded by exercise mats and a punching bag, they stagger, twist, and flail in unison, offering a glimpse at the physical coordination required to pull off the effect.
Light spoilers follow. According to Film Colossus, the creature forms when tendrils emerge from a farmhouse husband and wife, pulling the 2 bodies together until they’re merged at the base of the neck, with 4 arms and 4 legs. Fans have nicknamed the terrifying amalgamation the Stalker because of the way it trails Bryan.
Merged monster rehearsals for Zach Cregger’s ‘RESIDENT EVIL.’ 📷 Jakub Hudlický https://t.co/ddx1hnRxaq
— Nexus Point News (@NexusPointNews) September 25, 2026
The director has been vocal about his hands-on approach. “Well, we had to have some original stuff in this movie, right,” Cregger told Bloody Disgusting, adding that it was fun to invent new things that fit into the T-Virus world while still feeling fresh.
That commitment went well beyond rehearsals. Mahan’s team built a roughly 2,000-pound puppet that required 4 operators and had to be shipped in pieces from Los Angeles to Prague, where the film was shot, according to Readdork.
Even when visual effects were needed, the team first built and filmed physical versions on set. Cregger explained that this let the actors interact with something real, helping the monsters look more natural on screen, iXBT Games reported.
The first trailer for Zach Cregger's ‘RESIDENT EVIL’ has been released.
— DiscussingFilm (@DiscussingFilm) April 30, 2026
In theaters on September 18. pic.twitter.com/eeVCAGzy6M
The rehearsal footage is just one piece of a massive practical effort. Readdork reported that the production used hand-built creatures, puppeteers, pneumatic rigs, slime, and hundreds of gallons of fake blood for its most graphic sequences.
Legacy Effects also crafted several mutant-baby designs for a maternity-ward sequence, including a long-limbed, 3-eyed animatronic whose eyes could blink separately. Cregger said he wanted those scenes to introduce new enemies and creatures that could fit right into the games.
The effort appears to have paid off. The film holds glowing reviews on Rotten Tomatoes, where one critic praised it as a gruesome and twistedly funny addition to the saga, while another said Cregger revived the franchise by reminding audiences why people loved it in the first place.
It has also delivered at the box office, opening to a franchise-record $60 million domestically last weekend. With rehearsal clips like this one going viral, curiosity about the film’s creature work is only growing.
What do you think of the practical creature work in Zach Cregger’s Resident Evil?
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