Isa Briones joins Backstage to discuss playing Dr. Trinity Santos on HBO Max’s “The Pitt,” finding the humanity beneath her character’s tough exterior, and balancing the role with her Broadway career. She opens up about auditioning for the series while also performing eight shows a week onstage, attending medical boot camp, building onscreen chemistry with Noah Wyle, advocating for her Filipino heritage, and the acting lessons she carries from growing up in a musical theater family.