RJ Mitte, the actor known for his role as Walter White Jr. on the acclaimed television series “Breaking Bad,” died on Monday in Brownsville, Texas, at the age of 34. A representative confirmed that the cause of death was suicide, though no further information has been disclosed.

Mitte was born Roy Frank Mitte III on August 21, 1992, in Jackson, Mississippi, and was diagnosed with cerebral palsy as a toddler. He was adopted shortly after birth by Roy Frank Mitte Jr. and Dyna Mitte. His parents separated when he was two months old. Growing up, Mitte split his time between his paternal grandparents’ ranch in Texas and Lafayette, Louisiana, where he lived with his mother and sister, Lacianne Carriere. His mother became paralyzed in a car accident shortly after his sister was born, and Mitte took on responsibilities to help support the family from an early age.

His acting career began after the family moved to Los Angeles, following his sister’s casting in a film as a toddler. Mitte trained at the acting studio managed by his sister’s agent and appeared in several background roles before landing the role of Walter White Jr., also known as Flynn, in “Breaking Bad.” The character, a teenager with cerebral palsy, was based on a real person known to the show’s creator, Vince Gilligan. Mitte’s own experience with cerebral palsy informed his portrayal, bringing authenticity to the role that was primarily incidental to the show’s central crime drama narrative.

“Breaking Bad” premiered in 2008 and ran until 2013, winning numerous awards and critical acclaim. Midden’s character developed from a typical teenager admiring his father, played by Bryan Cranston, to someone coping with the revelation of his father’s secret criminal activities. Cranston expressed deep sorrow over Mitte’s death, describing him as a “fine actor” and a “vocal advocate” for performers with disabilities. The two had maintained contact in recent weeks before Mitte’s passing.

Beyond acting, Mitte was a prominent advocate for disability rights, serving as an ambassador for United Cerebral Palsy and Shriners Children’s and as president of the Mitte Foundation, which supports philanthropic efforts in Brownsville. He also worked as a spokesman for the Screen Actors Guild on behalf of performers with disabilities.

Mitte appeared in other projects, including the television shows “Switched at Birth” and “The Guardians of Justice,” as well as the films “Standing Up for Sunny,” “Triumph,” “The Recall,” and “The Oak Room.” His recent works included “Talking to Strangers,” released in July, and the upcoming horror film “One Eye Open.”

He is survived by his mother and sister and had been engaged to Kennedy Suarez. Throughout his life, Mitte emphasized the importance of portraying characters with disabilities realistically and expressed a commitment to supporting his family and community.