RJ Mitte, best known for playing Walter White Jr. on 'Breaking Bad' and for his disability rights advocacy, has died at 34 in Brownsville, Texas, his representatives confirmed.

RJ Mitte, the actor who played Walter White Jr. on AMC's Breaking Bad and became a prominent disability rights advocate, has died. He was 34.

His representatives confirmed the death in a statement shared with multiple outlets on Monday. “It is with profound sadness that we share the tragic passing of beloved actor, philanthropist, and passionate disability rights advocate RJ Mitte,” the statement read. Mitte died in Brownsville, Texas, according to a BBC report. No immediate cause of death was provided by his representatives.

Separately, a county official told TMZ that Mitte died by suicide. Authorities are investigating. That account has been widely repeated across outlets, including Page Six, the Daily Mail and the New York Daily News, but has not been formally confirmed by law enforcement or Mitte's family.

A breakout role built on lived experience

Mitte drew on his own experience living with cerebral palsy to portray Walter “Flynn” White Jr., the teenage son of Bryan Cranston's chemistry-teacher-turned-meth-manufacturer. He appeared in 56 episodes of the series across its 2008–2013 run and shared in the show's 2014 Screen Actors Guild Award for outstanding ensemble performance in a drama series.

His representatives said Mitte “brought authenticity to the role and built a platform on disability awareness and inclusion.”

Cerebral palsy is a group of disorders affecting movement and posture, and the condition's severity varies widely between individuals. Mitte's case was milder than that of the character he played, a distinction he spoke about openly as he pushed for more and more varied portrayals of disabled people on screen.

“You accept the risks and you accept these will be the parts you play,” Mitte told The Guardian in 2015. “But it's all about how you play those parts — you have to show the inner strength that people have.”

Advocacy beyond acting

Mitte was an outspoken voice for disability representation in entertainment. He served as an ambassador for United Cerebral Palsy and Shriners Children's, and he created the Mitte Foundation to support philanthropic and community initiatives, using his platform to challenge stereotypes and promote greater representation for people with disabilities.

His death drew immediate reaction from across the entertainment industry, with co-stars and fans recalling both his performance and his advocacy work.

A final public appearance

Mitte made a public appearance in the days before his death, speaking on the podcast Stauros Entertainment on 2 October about his role in the film Talking to Strangers, in which he played a man with cerebral palsy involved in a love affair. He praised the project for “pushing social norms” and “stepping out of the realm of comfort.”

He was also photographed on 30 September at a screening of the film at the Fine Arts Theatre in Beverly Hills, California. Multiple reports noted he had proposed to his fiancée, Kennedy Suarez, in recent weeks.

What remains unconfirmed

As of Monday evening, a formal cause of death had not been released by officials, and the suicide account rested on a single unnamed county official cited by TMZ. gloobeam.com will update this article should authorities or Mitte's family release further information.