William Mark McCullough was born and raised in the historic city of Savannah, Georgia, a place that undoubtedly had a profound impact on his formative years. He went on to earn a prestigious degree in political science and theater from Mercer University, further developing his critical thinking and creative skills. McCullough's academic pursuits didn't stop there, as he later earned a law degree from American University, demonstrating his ability to excel in multiple fields.
Before transitioning to a career in entertainment, Mark had a stint in politics and law on Capitol Hill, where he likely honed his skills in negotiation, diplomacy, and strategic thinking. However, a life-altering car accident while on a trip to Nicaragua prompted him to re-evaluate his priorities and pivot towards a new career path.
Mark's impressive filmography boasts a wide range of roles, including a tough Southern cop alongside Glenn Close and Amy Adams in the critically acclaimed drama, Hillbilly Elegy (2020). He has also appeared as the gun and drug smuggling co-pilot to Tom Cruise's character in the action-packed thriller, American Made (2017). Additionally, Mark has played the role of a violent enforcer for Nicolas Cage's mob boss character in the crime drama, Arsenal (2017),and a redneck co-worker opposite Channing Tatum in the comedy, Logan Lucky (2017). More recently, he has appeared in the horror film, The Devil Below (2021),and the period drama, The Walk (2022),among others.
In television, Mark has made notable appearances in a range of shows, including the Netflix series, Sweet Magnolias (2020),where he played a tough, blue-collar dad. He has also had recurring roles in the television spin-off, L.A.'s Finest (2019),and the AMC series, The Walking Dead (2022). Mark has also appeared in the DC Universe series, Swamp Thing (2019),and the Marvel series, The Gifted (2017-2018),playing a former special forces soldier with mutant powers.
When he's not acting, Mark is a passionate world traveler, having backpacked through multiple countries, including Russia, Turkey, Serbia, Bulgaria, Cuba, and Nicaragua. His love for exploration and cultural immersion is evident in his adventurous spirit and ability to adapt to new environments.
