Former Homicide: Life on the Street star Reed Diamond has signed on to guest-star on The Mentalist, TVGuide.com has learned.
The Mentalist: Did Patrick Jane really kill Red John?
Diamond will play Ray Haffner, a confident CBI supervising agent who runs a tight ship. As we previously reported, Haffner will lead a group of agents assisting Lisbon (Robin Tunney) and her team with the investigation of a personal trainer’s murder. Something tells us the CBI may not be big enough for both teams…
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