Walton can currently be seen starring in the breakout hit series, FALLOUT at Amazon for writer/director Jonathan Nolan. His performance has garnered him an Emmy nomination for Outstanding Lead Actor in a Drama Series. He can also be seen reprising his role of 'Baby Billy' in the HBO comedy series THE RIGHTEOUS GEMSTONES, opposite Danny McBride. Walton can next be seen starring as the male lead in season 3 of THE WHITE LOTUS for HBO.

Walton can previously be seen starring in Boots Riley's Amazon limited series I'M A VIRGO opposite Jharrel Jerome, starring in the Apple limited series THE LAST DAYS OF PTOLEMY GREY opposite Samuel L. Jackson, on season two of the Fox Networks Group series DEEP STATE, which he plays the role of 'Nathan Miller' and starring on the CBS comedy THE UNICORN. He can also be seen starring in the film DREAMIN' WILD starring opposite Casey Affleck and Zoey Deschanel. Walton first came to prominence portraying the cunning and morally ambiguous outlaw 'Boyd Crowder' in the hit FX series JUSTIFIED. Concurrently, Walton made quite the splash with his earth-shattering performance in FX's SON'S OF ANARCHY, portraying the transsexual prostitute 'Venus Van Dam'. Prior to that, Walton starred in the hit series THE SHIELD. He also played key roles in the Quentin Tarantino films DJANGO: UNCHAINED and THE HATEFUL EIGHT as 'Billy Crash' and 'Sheriff Chris Mannix'.