Donald Joseph Qualls (born June 10, 1978), known professionally as DJ Qualls, is an American actor, producer, and model. He is best known for his work in films including Road Trip, The New Guy, Hustle & Flow, and The Core and for several appearances on television series such as Breaking Bad, Supernatural, Scrubs, Lost, CSI: Crime Scene Investigation, and The Big Bang Theory. He co-starred in the FX comedy series Legit, and is co-starring in the Syfy horror series Z Nation. He was cast in the Amazon Studios show The Man in the High Castle. Qualls was born in Nashville, Tennessee, one of five children of Donnie and Debbie Qualls. He was raised in Manchester, Tennessee, and attended school nearby. He was diagnosed with Hodgkin's lymphoma at age 14; after two years of treatment, his cancer was said to be in remission. According to Qualls the chemotherapy he received at an early age sped up his metabolism and impacted his system at a time of growth, "It stopped my development," which explains his slender frame. After graduating from Coffee County Central High School, where he was an active member in the Red Raider Band, Qualls attended King's College, London, where he studied English language and English literature. He returned to Tennessee and enrolled in Belmont University in Nashville, where he also began acting in a local theater company.

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