RJ Mitte, who spent years on screen as Walter "Flynn" White Jr. in the television drama Breaking Bad, has died at the age of 34. A statement from his representative announced the actor's death, noting that his work spanned both the entertainment industry and disability rights advocacy.

Mitte died in Brownsville, Texas, on Monday, 12 October. His representative told a broadcast news outlet that his death resulted from a self-inflicted cause.

Bryan Cranston's portrayal of Walter White anchored the Emmy-winning crime drama, and it was Mitte — drawing on his own lived experience with cerebral palsy — who brought Walter White Jr., the character's son, to the screen. That role drew attention to him as an emerging actor and raised his profile within the Hollywood industry. A Screen Actors Guild Award came his way in 2014, tied to his performance in the drama about a high school chemistry teacher who turned to producing illicit substances following a cancer diagnosis.

Cranston, who played Mitte's on-screen father across the entire series, offered remarks about his former co-star, recalling that their working relationship began when Mitte was 14, newly cast as Walter White Jr., and that the young actor had taken to the part with clear enthusiasm, developing his craft steadily as the show progressed. Series creator Vince Gilligan recalled that Mitte arrived on set for the pilot shoot in February 2007 with relatively little acting background, yet steadily developed his craft as production continued, noting in his own words that watching that development unfold, episode by episode, was one of the more gratifying parts of the process.

Cranston also commended the advocacy work Mitte had undertaken on behalf of performers with disabilities, noting that the actor had never let his condition place a ceiling on what he set out to achieve. In a written tribute, Cranston reflected that the time they shared across the run of the series and beyond had been something he genuinely valued, described the loss as considerable given the potential Mitte had carried, and expressed grief at the circumstances of his death, closing with a farewell addressed to Mitte as a son. Mitte's representative, Sean Reilly, noted that the actor had brought an authenticity to his performances and had used the platform his public profile afforded him to advance awareness and inclusion for people with disabilities.

His work extended beyond the screen. Mitte took on ambassador roles with both United Cerebral Palsy and Shriners Children's. The Mitte Foundation, which he established to fund charitable work and community-focused programmes, also served as a platform through which he worked to shift perceptions around disability and push for more equitable representation.

Aaron Paul, who portrayed Jesse Pinkman throughout the run of the series, described his reaction to the news as one of deep personal loss, addressing Mitte directly in a public message and stating that his affection for him as a friend remained strong. In a statement shared with a news outlet, Paul expressed that the person would be deeply missed. He also addressed those going through emotional hardship, conveying through a written message that anyone in that position is cared for and has others alongside them, and closed by urging that the point be kept in mind.

In a written post, Dean Norris — who portrayed Hank Schrader, Mitte's uncle on screen — said the connection he felt toward Mitte stretched beyond anything their storyline required, describing how he looked out for the younger actor on set in the manner of a guardian figure.

Raised in Louisiana with cerebral palsy, Mitte relocated to Los Angeles in 2005, driven by a desire to support his younger sister's pursuit of an acting career. From there, a move into entertainment work took shape, with one particular role eventually becoming the foundation on which his early professional reputation was built.

Mitte, speaking in a prior interview, described auditioning for a California public-service spot aimed at discouraging methamphetamine use — an audition that came before he landed his part on Breaking Bad. He described the show's depiction of methamphetamine use — rendered through the fates of its characters — as an intentional warning built into the project's design.

Drawing on the life of a close friend he had lost — someone who lived with a more pronounced form of cerebral palsy and relied on forearm crutches — Gilligan shaped part of the character that Mitte would go on to portray. Mitte himself had no need for the mobility aids that defined his on-screen character. Reviewers noted that the portrayal gave the teenage character with cerebral palsy a layered, three-dimensional sense of self, with his condition woven into his identity rather than standing as its defining boundary.

Five seasons of Breaking Bad ran on AMC, the American cable channel, from 2008 through to 2013. Following the show's reception, Mitte continued to take on varied screen work while lending his voice to efforts aimed at broadening how people with both visible and invisible disabilities are portrayed in the industry.

During a 2021 television interview, he put forward the view that the entertainment industry stood to benefit from drawing on a wider variety of human experiences, noting that award cycles ideally reflect the full range of people, across both physical and personal dimensions. Among his television appearances, roles on Hannah Montana, Switched at Birth, and Westhampton rounded out a screen portfolio that extended beyond a single project. A new project, Talking to Strangers, was released in 2026.