Adria Arjona, Drew Starkey Lead Onslaught’s L.A. Premiere Photos
Deadline’s premiere gallery from Regal L.A. Live lands one week before A24’s Onslaught opens in theaters on September 4. The photos put Adria Arjona, Drew Starkey, Dan Stevens, Jason Momoa, and the rest of the cast in the same frame as the film’s blunt hook: an army sniper, a trailer park, and super-soldier threats from a secret military facility.
Deadline reported that A24’s Onslaught premiered in Los Angeles on August 26, 2026, with Adria Arjona, Drew Starkey, Dan Stevens, Reginald VelJohnson, Adam Wingard, Blake Kennedy, Michael Biehn, and Jason Momoa among the people on the carpet at Regal L.A. Live. That matters because the film opens in theaters on September 4, and this is the part where a slasher stops being a line on a release calendar and becomes a pile of photos, names, and faces the public is supposed to remember.
Regal L.A. Live Gets the Usual Shine
The gallery is the point here. Deadline’s set of premiere photos turns the Los Angeles stop into a group portrait: Arjona, Starkey, Stevens, VelJohnson, Wingard, Kennedy, and Biehn all show up as part of the same sales job. Jason Momoa does too, because the page wants the personal and the professional in one neat bundle.
Deadline also says Arjona and Momoa are dating, and that both sit inside the DC universe orbit. Momoa was just on screen in Supergirl as Lobo. Arjona is headed for 2027’s Man of Tomorrow, with her role still under wraps. That is the kind of detail publicity loves because it looks like extra meaning without having to explain anything.
Photo: Eva Rinaldi from Sydney Australia · CC BY-SA 2.0 · source
Adria Arjona, Drew Starkey, Dan Stevens, and the Cast Roll Call
The movie’s cast list has enough names to make the carpet feel busy even before the extras and guests drift in. Deadline identifies Arjona as Celeste, Alex Pereira as The Butcher, Dan Stevens as Dr. Hans Kammler, Eric Wareheim as Kovacks, Reginald VelJohnson as Josiah, Michael Biehn as Baylor, Drew Starkey as Cyrus, Rebecca Hall as Hanna Kammler, Maurice Greene as Teddy, Blake Kennedy as Daisy, and Jacob Scipio as Griffin.
That is not a small ensemble. It reads like a production that wants the audience to keep several plates spinning at once, which is exactly what a genre movie does when it hopes to sound larger than its budget line. You get the faces, the roles, the names, and then the image gallery does the rest of the talking.
