Michael Weston, Sela Ward Michael Weston, Sela Ward

CSI: NY has booked former House and Six Feet Under actor Michael Weston to play Frank, a former FBI crime lab agent who worked with Jo (Sela Ward) in Washington, TVGuide.com has learned exclusively.

But the duo's reunion likely won't be a happy one.

Fall Preview: Get scoop on your favorite returning shows

Check out our list of TV's sexiest crime fighters!