Chad L. Coleman (born September 6, 1967) is an American actor. He is known for playing Dennis "Cutty" Wise on the HBO series The Wire (2004–08), Tyreese on the AMC series The Walking Dead (2012–15), Mingo on Roots (2016), Z on the FX sitcom It's Always Sunny in Philadelphia (2010–19), Fred Johnson on The Expanse (2015–20), Klyden on The Orville...