This post contains frank discussion of the entire second season of Westworld, including the finale, “The Passenger.” If you’re not caught up, now is the time to leave.

There was a lot to digest in the 90 action-packed minutes of Westworld’s Season 2 finale. We found where Dolores was hiding this whole time, a shocking Season 3 setup, an assortment of callbacks and revelations, as well as some clues tucked away in the show’s opening credits. But you’ll be forgiven if you started to question the nature of your reality when you heard Ashley Stubbs’s (Luke Hemsworth) final conversation with “Charlotte Hale” on the Westworld beach. Could it be? Do we have another secret Host on our hands? Why, yes.

The dialogue was ambiguous enough that, I suppose, if one wanted to deny the truth, one could. But the episode’s director, Fred Toye, confirmed to Vanity Fair’s Still Watching: Westworld podcast that, from his perspective, Stubbs is another secret Host. In a scene that Westworld co-creator Jonah Nolan literally re-wrote the night before they shot it, we find out not only that Stubbs is a Host “hired” so long ago by “the old man” he can barely remember when (wink, wink), but that his core drive has been to protect every host in the park. Nolan’s last-minute changes were meant to re-shape the execution of the scene, but the plan to reveal Stubbs as a Host was a long-time in the making. He lets Dolores/Charlotte go, seemingly with full knowledge of both who she is and what she’s about to do. According to Toye, Hemsworth’s reaction to getting the new pages: “I just read this scene! Oh shit!”

Toye clarifies that Nolan woke up with a “light bulb” the day before they shot Stubbs’s encounter with Dolores/Charlotte and “re-conceived” the scene, so it’s unclear if it was Westworld’s plan all along to have Stubbs be a secret Host. But knowing that he is a Host casts some of his earlier scenes in a new light. First of all, while Stubbs’s entrance in Season 2 struck many as a nice little callback to Season 1 . . .