Isa Briones is balancing two very different worlds: the high-pressure intensity of HBO Max’s The Pitt and the bright, Broadway energy of Just in Time. In both projects, she leans into characters that rely on presence, musical instinct, and a sharp edge, even when the tone changes completely.
Briones is finishing work on the second season of The Pitt while also playing singer Connie Francis in the Broadway bio-musical Just in Time, which centers on mid-century crooner Bobby Darin. The two roles sit at opposite ends of the performance spectrum, with one rooted in a hospital ER and the other in an upbeat stage production built around charm and classic show-business polish.
A sharper and softer side of Trinity Santos
On The Pitt, Briones plays Trinity Santos, a resident whose intensity can read as abrasive to co-workers and viewers alike. The first season positioned Santos in conflict with Patrick Ball’s Langdon, only for the show to reveal that he was stealing drugs while she was acting in good faith.
The second season pushes Santos through what Briones calls her “no good, very bad day.” The character is weighed down by paperwork, still clashes with Langdon after his return from rehab, and continues to treat the hospital as a competitive space.
R. Scott Gemmill, the show’s creator and showrunner, said Santos has always felt close to Briones’s own personality. He also said the new season was shaped with more awareness of Briones as a performer, including moments that reveal vulnerability, friendship, and warmth.
One of those moments is a scene in which Santos sings a Filipino lullaby to a baby. Gemmill said the choice was meant to surprise viewers who had only seen her character’s harder edges, and Briones’s musical talent helped inspire the scene.
Why “Just in Time” fits Briones differently
If The Pitt asks Briones to hold tension, Just in Time asks for ease, wit, and quick charisma. Director Alex Timbers said Connie Francis needs that kind of effortless magnetism, and he described Briones as “nervy and sardonic” in a way that suits the role.
The Broadway production has also given Briones a different kind of spotlight. Her performance of “Who’s Sorry Now” drew attention on Broadway-adjacent social media, and the crowd reportedly responds strongly when she steps onstage and delivers the song with confidence and mischief.
Briones has said the role feels like a theatrical “princess track,” meaning it demands strong energy in a relatively short amount of stage time. That makes the part different from television work, but it still depends on the same vocal control and confidence that have carried her through larger musical roles.
A theater family shaped her instincts
Briones’s performances are tied to a life spent around theater. Her parents, Jon Jon Briones and Megan Johnson, met while performing in Miss Saigon, and Isa was born in London in 1999 while her father was in the West End production.
Her family later moved to Los Angeles when she was 9, and much of what she learned about acting came from being backstage and listening to cast members talk about what worked and what did not. That environment pushed her toward the same business, and the path soon became clear through local productions, auditions, and touring work.
Her early career included a commercial for a Furby-like toy, which she now remembers with amusement. By 17, she had moved from an arts high school to homeschooling and booked a role in a local production of Next to Normal, setting off a run of steady jobs that continued through theater, television, and touring.
She later spent months auditioning for Hamilton while working at Balthazar in New York before landing the national tour. She also appeared in Star Trek: Picard and Goosebumps, and she has not forgotten sitting in a waiting room for High School Musical: The Musical: The Series while Olivia Rodrigo and Joshua Bassett met for the first time.
How reaction to Santos changed her experience
The success of The Pitt has brought Briones a different kind of attention. The series became a major hit on HBO Max and won numerous Emmy Awards, including Best Drama, which only intensified the reaction to its characters.
At first, Briones said she could laugh when people told her on the street that they hated Santos. As the show’s online discussion grew louder and more hostile, she said it became harder to separate the character from the personal weight of some of the material.
That became especially true in the second season, which shows scars on Santos’s thighs and suggests she is dealing with self-harm. Briones worked with the writers on that storyline and said she appreciated that the scars were not sexualized, but she also said the response from some viewers crossed a line when criticism ignored how the show treated male characters.
She has drawn a boundary around how much fan reaction she takes in, even though she still enjoys the memes and the energy around the show. That line matters more now that she is also performing live on Broadway, where audience behavior can be immediate and personal.
Briones recently recalled posting an Instagram Story after an unruly theatergoer addressed her as “Dr. Santos,” a reminder that her television role now follows her into the stage world. Still, she says the overlap between the two projects has its pleasures, especially when a fake hospital drama and a live musical unexpectedly connect through karaoke.
That connection shows up in the finale of The Pitt, where Santos and Dr. Mel King sing Alanis Morissette’s “You Oughta Know” in a mid-credits karaoke scene. Briones was unsure about Santos singing twice in one season, but she said the sequence was fun to film and gave the character a lighter kind of release.
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