Roy Frank “RJ” Mitte III is an American actor, best known for playing Walter “Flynn” White Jr. on the AMC series Breaking Bad (2008–2013). Like his character on the show, he has cerebral palsy. After moving to Hollywood in 2006, he began training with a personal talent manager. They sought acting opportunities where his disability would serve to educate viewers, which led him to audition for the role in Breaking Bad.

After receiving several roles as an extra, including in the Disney series Hannah Montana, Mitte became interested in films and decided to take acting lessons. Shortly after, he was offered the role of Walter White Jr., a character who also has cerebral palsy, in the AMC series Breaking Bad. At the 2013 Media Access Awards, Mitte received the SAG-AFTRA Harold Russell Award for his portrayal of Walter White Jr. on the series and also presented the eponymous RJ Mitte Diversity Award to deaf actor Ryan Lane. The Screen Actors Guild named Mitte as the spokesman for actors with disabilities and he is the representative of Inclusion in the Arts and Media of Performers with Disabilities, which employs artists with disabilities.

He starred in the short horror film Stump in 2011. That same year, he worked as executive producer of the documentary Vanished: The Tara Calico Story, about the disappearance of Tara Calico. Mitte was cast in the 2012 thriller film House of Last Things.

Mitte appeared in the 2013 music video for “Dead Bite” by rapcore band Hollywood Undead. He also appeared in the video for “If I Get High” by Nothing But Thieves in 2016. In January 2014, he began a recurring role on the ABC Family drama series Switched at Birth portraying Campbell, a premed student paralyzed from a snowboarding accident who uses a wheelchair.

On 17 November 2015, Mitte was announced to be a presenter as part of British Channel 4’s coverage of the 2016 Rio Summer Paralympics.