Other Mommy cast and characters
Publicly available trailer and industry information identify Jessica Chastain, Jay Duplass, and Arabella Olivia Clark among the film’s central names. The promotional material places Bela at the center of the story and presents Chastain in connection with both Bela’s mother and the menacing “Other Mommy” presence.
Jessica Chastain
The official campaign positions Chastain at the heart of the film’s dual maternal image. Avoid assuming how that relationship works on screen: promotional descriptions establish the setup, not the film’s full explanation.
Jay Duplass and Bela’s family
Jay Duplass appears in the family unit seen in the trailer. Bela’s point of view is central to the public premise, so this guide avoids attaching unconfirmed character arcs to either performer.
Why the cast page is deliberately limited
Cast announcements can change and trailers rarely reveal every role. This page will expand only when an official studio update or reliable credited listing provides a clear source.
Sources
Q: Why are there only a few names here?
This page includes details that can be tied to public promotional or credited sources and avoids filling gaps with rumor.