Lincoln Campbell is a charismatic Inhuman S.H.I.E.L.D. agent and a member of the Secret Warriors. He previously worked in Afterlife as a transitioner. He helped Skye understand the true extent of her transformation. Originally siding with Jiaying during the War against the Inhumans, he began to doubt her intentions seeing her kill innocent agents, and after learning the truth from Skye, helped S.H.I.E.L.D. defeat Jiaying. In the aftermath of the war, Campbell attempted to start a new peaceful life, but was forced to go into hiding when he was pursued by a murderous Inhuman named Lash and the ATCU, which led him to join S.H.I.E.L.D. and become a member of the Secret Warriors.