By Joyce Eng
Get ready to meet Hotch's father-in-law: Ed Asner!
The legendary Mary Tyler Moore Show and Lou Grant star will appear as the father of Hotch's late wife Haley on the 20th episode of Criminal Minds this season -- and TVGuide.com has your exclusive behind-the-scenes look at the family reunion.
Unfortunately, what brings them together isn't happy news, as Hotch (Thomas Gibson) finds...
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