YMMV / Agents of S.H.I.E.L.D. S1 E16 "End of the Beginning"

• Narrowed It Down to the Guy I Recognize: Thomas Nash was believed to be the Clairvoyant until Ward shoots and kills him in cold blood. Having him being played by Chucky himself (Brad Dourif) tipped you off that he was the Clairvoyant. (Except he isn't, he was just a fall guy to the real one.)