'Psych' Finale: Anthony Michael Hall Makes Waves To End Season 7 (VIDEO)

On the season finale of "Psych," nerdy '80s icon and "Dead Zone" alum Anthony Michael Hall guest starred, and made big waves.

Hall played consultant Harris Trout, who was brought in to keep tabs on how the station was running. By the end of "Pysch" finale, he fired Chief Vick and told Lassiter, "We'll no longer be hiring psychics. And you're no longer head detective. And I'm painting these walls."

"It's on now," a shocked and angry Gus replied.

TV.com said Hall's guest spot was a great way to end the season and TVFanatic loved the "Psych" finale, saying it shows how far the crew has come as a team.

"They can be the most dysfunctional group of co-workers in the building," Chandel Charles wrote. "But when you come into their house and threaten their people ... it is on."

Hall's character is the new interim chief of police, so, yeah ... it might be on.

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