Calvin Zabo, born as Calvin L. Johnson, is the overarching antagonist of Season 1 and a major antagonist in Season 2 of the TV series Marvel's Agents of S.H.I.E.L.D., appearing as the central antagonist of the first half and a supporting antagonist-turned-anti-hero in the second half. He is the biological father of once of the series' main characters Daisy Johnson and an Inhuman who wants to fulfill a mysterious prophecy involving the Kree, which could possibly cause the apocalypse.