Michael Badalucco by Duffy-Marie Arnoult/ WireImage.com
Remember that rotation of grad students I told you would be taking turns filling Zack's position as a Bones squint? One of them has been cast, and he's very familiar to fans of The Practice. Michael Badalucco, who played blue-collar Jimmy on the ABC legal drama, is booked for at least one episode, and will first appear a few weeks into Season 4. Yes, he's playing a grad student, but one who has "lived some years" - akin to Grey's Anatomy's World's Oldest Intern, only not that long in the tooth.

In the same episode, look for a visit from Dog Whisperer Cesar Millan, playing... himself. (Maybe he gets confused about a Lab needing help? Haw!) - Matt Mitovich

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" Mega Minute: Bones Casting Scoop and More