Ken Olin, Thomas Gibson Ken Olin, Thomas Gibson

Thomas Gibson was prepared for the worst. The Criminal Minds star makes his series directorial debut with Wednesday's episode and had a way easier first day than he expected.

"I was hoping for some of [the actors] to give me a hard time, but no one did!" he tells TVGuide.com. "But [joking aside], everyone was great and extremely supportive of me, which certainly made the whole experience even better."

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