True O’Brien has spent over a decade in front of cameras, first as a child model, then as a Daytime Emmy winner on Days of Our Lives. Outside the soap world, she’s known for two things that keep bringing new readers to her name: her real-life romance turned marriage with co-star Casey Moss, and her family connection to Hailee Steinfeld, the cousin she actually helped inspire toward acting in the first place.
True O’Brien Biography
| Detail | Information |
|---|---|
| Full Name | True O’Brien |
| Date of Birth | February 28, 1994 |
| Age | 32 Years Old |
| Birthplace | Los Angeles, California, USA |
| Height | 5’7″ / 170 cm |
| Nationality | American |
| Occupation | Actress, model |
| Known For | Paige Larson on Days of Our Lives; Daytime Emmy winner |
| Spouse | Casey Moss (married May 25, 2025) |
| Parents | Elizabeth Marie Domasin O’Brien, John Richard O’Brien |
| Cousins | Hailee Steinfeld, Griffin Steinfeld |
True O’Brien Family Background
True was born in Los Angeles to Elizabeth Marie Domasin O’Brien and John Richard O’Brien, a graphic designer. Her mother’s side is where things connect to a much bigger name. Elizabeth is the sister of Cheri Steinfeld, an interior designer who also happens to be Hailee Steinfeld’s mother, which makes True and Hailee maternal first cousins. Their shared grandfather, Ricardo Domasin, was of half Filipino and half African-American descent, and their great-uncle, Larry Domasin, was a working child actor decades before either of them picked up the family habit.
That makes True part of the same extended circle as Hailee’s father Peter Steinfeld, her uncle Jake Steinfeld, and her brother Griffin Steinfeld, even though True’s own branch of the family runs through the Domasin side rather than the Steinfelds directly.
True O’Brien Child Model to Days of Our Lives
True started modeling at five years old, booking campaigns for Guess and Pottery Barn before she’d even hit her teens. She transitioned into acting in 2012, and her biggest break came playing Paige Larson on Days of Our Lives, a role that won her a Daytime Emmy for Outstanding Younger Actress in a Drama Series. Paige’s storyline ended in dramatic soap fashion, killed off in 2015, but the show ended up giving True something that outlasted the character entirely.
How She Connects to Hailee Steinfeld
True is the reason Hailee Steinfeld started acting at all. When Hailee was eight, she watched her older cousin appear in a television commercial and decided she wanted to try it herself. It’s a small detail that rarely gets mentioned in most Hailee coverage, but it puts True at the actual starting point of one of Hollywood’s more recognizable acting careers.
True O’Brien and Casey Moss
True met Casey Moss, who plays JJ Deveraux on Days of Our Lives, on set back in 2014. Their characters had a short and messy on-screen relationship, but the real-life version took a slower, steadier path. Moss proposed in June 2022 during a hike in Malibu, on a cliff overlooking the Pacific, and the couple spent the next few years figuring out logistics before settling on a date. They married on May 25, 2025, in an intimate beach ceremony in the Los Angeles area, surrounded by close family and friends, roughly a decade after they first met on set.
FAQ’s
How old is True O’Brien?
She’s 32 as of 2026, born February 28, 1994.
Is True O’Brien related to Hailee Steinfeld?
Yes, she’s Hailee’s maternal first cousin through Hailee’s mother, Cheri Steinfeld.
Who is True O’Brien married to?
Casey Moss, her Days of Our Lives co-star. They married on May 25, 2025, after meeting on set in 2014.
What is True O’Brien known for?
Playing Paige Larson on Days of Our Lives, a role that earned her a Daytime Emmy Award.