Pasdar, 46, will play a wine collector named Mason Kent. Batt, 48, will portray a premiere wine sommelier, also known as "The Nose." Both come under suspicion when a high-end wine connoisseur — who has been counterfeiting the product — dies of a heart attack while locked in his cellar.
The episode, titled "Trophy Wine," does not yet have an airdate.
Best known for playing Senator Nathan Petrelli on Heroes, Pasdar appeared in a multi-episode arc on Castle earlier this year. Following his three-season stint on Mad Men as closeted art director Salvatore Romano, Batt guest-starred on Ugly Betty.
Law & Order: Criminal Intent airs Sundays at 9/8c on USA.