Arabella Olivia Clark Wiki, Age, Height, Net Worth 2026

Arabella Olivia Clark is an American child actress who stepped into the spotlight in October 2026 as the lead of Other Mommy, Universal Pictures and Blumhouse’s horror adaptation of Josh Malerman’s bestselling novel Incidents Around the House. Cast as Bela — the eight-year-old girl terrorized by a sinister entity that takes the form of her mother — when she was just eight years old herself, Clark carries nearly the entire 93-minute film, opposite Jessica Chastain in a dual role. Reported as ten years old at the film’s premiere, she is already talked about as one of the genre’s most promising young performers. Like Summer H. Howell, another young genre lead, Clark carries a studio horror film.

Arabella Olivia Clark Early Life and Education

Arabella Olivia Clark’s exact date of birth has not been publicly disclosed, and reputable outlets have not published it. Press coverage of the Other Mommy release in October 2026 consistently described her as ten years old, while Deadline reported in July 2025 that she had been cast in the lead role at age eight. She is American and based in Los Angeles, where she gave press interviews the morning after the film’s premiere. Beyond that, her family keeps her private life out of the press: the names of her parents have not been published, and little has been revealed about her schooling beyond the fact that she balanced auditions and filming with her education like most working child performers.

Arabella Olivia Clark Career: From TV Guest Spots to Leading a Blumhouse Horror Film

Clark’s screen career began with television guest appearances. She appeared as Sarah in an episode of the Amazon anthology series Modern Love and as Kendall in an episode of the ABC comedy-drama Not Dead Yet, steadily collecting on-set experience in her early years as a performer.

Her feature-film work accelerated quickly. In 2025 she appeared in three notable studio projects: Paul Feig’s The Housemaid, in which she played the eight-year-old version of Nina opposite Sydney Sweeney; Scott Cooper’s Springsteen: Deliver Me from Nowhere, the Bruce Springsteen biopic in which she played Virginia Springsteen alongside Jeremy Allen White; and Michelle Garza Cervera’s The Hand That Rocks the Cradle, the 20th Century Studios remake of the 1992 thriller.

The career-defining opportunity came with Other Mommy. Deadline reported in July 2025 that eight-year-old Clark had won the lead role of Bela. In an exclusive Filmfare interview published in October 2026, Clark said she knew she wanted the part from the very first audition through the final one five months later. She read Nathan Elston’s screenplay twice during the process — and the reading only deepened her interest, so her mother ordered Josh Malerman’s novel for her and Clark read that too. She called the role “my unicorn of a film role.”

The film, directed by Rob Savage (Host, The Boogeyman) from Elston’s screenplay and produced by James Wan for Blumhouse and Atomic Monster, follows eight-year-old Bela as a sinister entity emerges from her closet and takes the form of her mother. Chastain plays both the real mother, Ursula, and the entity; Jay Duplass plays the father, Daddo; and the supporting cast includes Dichen Lachman, Arian Moayed, Karen Allen, and Sean Kaufman. Clark appears in nearly every scene of the R-rated film — an extraordinary workload for a performer her age — and reviews consistently singled out her performance as the film’s emotional center.

Other Mommy opened in US theaters on 9 October 2026, with its trailer having debuted theatrically before Christopher Nolan’s The Odyssey. The film took roughly $27.5 million domestically in its opening weekend — a strong start for an original horror property. Industry coverage of the premiere also noted a striking detail about Clark’s off-screen life: she is being mentored by Mckenna Grace, the former child star turned genre favorite who carved a similar path through horror and studio films. That mentorship, reported in a Variety interview, suggests Clark is being guided by someone who understands exactly what a young actress faces in the industry. She joins young actresses headlining studio horror, like Leven Rambin.

Arabella Olivia Clark Personal Life

As a child performer, Clark’s personal life is deliberately kept private, and rightly so. Interviews around the Other Mommy release show her as an enthusiastic, articulate young actress who threw herself into understanding the story — reading the source novel during auditions and preparing for a physically and emotionally demanding shoot. Her mother accompanied her through the audition and press process, and Clark has spoken warmly about working with Chastain and Duplass on set. No social-media accounts have been widely publicized for her, which is consistent with how many child actors’ careers are managed at this stage.

Arabella Olivia Clark Net Worth 2026

Arabella Olivia Clark’s net worth in 2026 has not been publicly disclosed, and no reliable estimate exists. As a child actress early in her career, her earnings are private family matters; any figure attached to her wealth online should be treated as speculation rather than verified fact.

FAQ

How old is Arabella Olivia Clark?

Her exact birthdate has not been publicly disclosed. Press coverage in October 2026 described her as ten years old, and Deadline reported she was eight when cast as Bela in July 2025.

Who does Arabella Olivia Clark play in Other Mommy?

She plays Bela, the eight-year-old protagonist — the lead role. Bela is terrorized by a sinister entity that emerges from her closet and takes the form of her mother, played by Jessica Chastain in a dual role. Clark appears in nearly every scene of the film.

How did Arabella Olivia Clark get the role of Bela?

She won it through a five-month audition process, as she told Filmfare. She read the screenplay twice, had her mother order Josh Malerman’s novel Incidents Around the House for her, and called it “my unicorn of a film role.”

What other movies has Arabella Olivia Clark been in?

Before Other Mommy (2026), she appeared in The Housemaid (2025) as the young Nina, Springsteen: Deliver Me from Nowhere (2025) as Virginia Springsteen, and The Hand That Rocks the Cradle (2025), plus TV guest spots on Modern Love and Not Dead Yet.

Is Arabella Olivia Clark related to anyone famous?

No family connection to any public figure has been reported. The names of her parents have not been published, and she is described in press coverage as an American child actress who came up through ordinary auditions.

Who is mentoring Arabella Olivia Clark?

According to coverage of a Variety interview around the Other Mommy premiere, Clark is being mentored by Mckenna Grace, the actress who began as a child star in horror and studio films and is now an established young performer.