Fred Thompson by Randy Brooke/WireImage.com
Sam Waterston, the honeymoon may be over.

Fred Thompson, the Law & Order vet/former Tennessee senator who on Jan. 22 dropped out of the race for the Republican presidential nomination, is looking to get back into acting, says the AP, and to that end has signed with the William Morris Agency.

What do you say, L&O fans? Welcome the big guy back?