James Christopher "Chris" Carmack is an American actor, singer, and former fashion model. He is known for his roles in three popular television shows—the teen drama series The O.C. (2003–2004) as Luke Ward, the country music drama Nashville as Will Lexington (2012–2018), and the medical drama Grey's Anatomy (2018–present) as Dr. Atticus Lincoln.[1]
Carmack performed the voice of Garth in Alpha and Omega.