ABC Just Released Photos of Agents of S.H.I.E.L.D Season 3

Henry Simmons, who plays Mack, said that although Mack respects Coulson, he has trust issues with him and doesn't agree with his decisions. "The fact that Mack has problems with people of power will not go away, so there will continue to be conflict between him and Coulson," he said. "I hope that builds because it creates more drama."