‘The Boys’ Showrunner Says That ‘Grey’s Anatomy’ Jeffrey Dean Morgan Nod Was Not on Purpose

Note: The following story contains spoilers from “The Boys” Season 4, Episode 6

“The Boys” revealed a major plot twist about Jeffrey Dean Morgan’s Joe Kessler, one that must have given the actor a funny sense of deja vu.

Episode 6, titled “Dirty Business,” featured plenty of big twists and turns. But Thursday’s new hour saved the biggest surprise for last, with Butcher (Karl Urban) figuring out that his recent partner Kessler has been a hallucination since his introduction in the Season 4 premiere. The twist introduced a whole new level of chaos for Butcher’s arc this season, while also acting as a hilarious nod for a fan-favorite role of Morgan’s on ABC’s “Grey’s Anatomy.”