Donald Joseph "DJ" Qualls (born June 10, 1978) is an American comedic actor known for his work in films such as The New Guy, Road Trip, and Hustle & Flow, and for appearances on television series such as Breaking Bad, Legit, Supernatural, Scrubs, Lost, CSI and The Big Bang Theory.
Qualls was born to Debbie and Connie Qualls in Nashville, Tennessee, and was one of five children. He was raised in Manchester, Tennessee, and attended school nearby. He was diagnosed with Hodgkin's lymphoma at age 14, and after two years of treatment, his cancer was said to be in remission.
After graduating from Coffee County Central High School where he was an active member in the Red Raider Band, in Manchester, Tennessee, Qualls attended the University of London in England where he studied English and literature. He returned to Tennessee and enrolled in Belmont University in Nashville, where he also began acting in a local theatre company.
He was an extra in the HBO movie Against the Wall in 1994. He landed the small role of Jason in the television miniseries Mama Flora's Family (1998) while participating for free in Community Theater. After auditioning for a one-liner in Road Trip (2000) he was asked to come from the Atlanta office to meet producer Ivan Reitman in California. Qualls debuted in Road Trip as shy virgin Kyle Edwards.
After Road Trip, Qualls increasingly worked as a model, working for Prada and with photographers David LaChapelle and Steve Klein. In Cherry Falls (2000), he played Wally, another virgin again. In 2001 he played Neil Lawrence in Chasing Holden.
In 2002, he appeared as Archie in the film Comic Book Villains, Andrew in Big Trouble, Junior in Lone Star State of Mind, Dizzy Gillespie Harrison in The New Guy, and Rat in the sci-fi film The Core. Qualls starred in the comedy Delta Farce with Bill Engvall and Larry the Cable Guy.
In 2005, Qualls appeared in the movie Hustle & Flow in a supporting role as Shelby.
His television work includes a recurring role as eccentric hunter Garth Fitzgerald IV on Supernatural as well as appearances on Monk, Scrubs, Criminal Minds, Lost, Law & Order: Criminal Intent, CSI, Numb3rs, My Name Is Earl, Breaking Bad, The Big Bang Theory, and Memphis Beat, as well as his current role as Billy Nugent, a 33 year old man with Paralyzing Muscular Dystrophy on the television series Legit, alongside a fictionalized version of Jim Jefferies.
Qualls appeared in a cameo in Britney Spears' music video "Boys" and was also in the "I'm Just a Kid" music video by Simple Plan. He stars in the Paramount Pictures web series Circle of Eight.