@dArtagnan OK, so it was just magically grossed out, it wasn't actually grossed out.
I don't know how ghoul immunities work in P2e.
I do know in D&D 3.5e and Pathfinder1e, a werewolf is a humanoid with the shapechanger subtype. This creates the awkward situation that werewolves are humanoids without any immunities to mind-affecting. In other words, werewolves are not immune to charm person. I had to figure out what a werewolf would do when it was charmed.