Conan O’Brien will match wits with the cast of Batman v Superman: Dawn of Justice on the March 31 installment of Conan, TBS announced Tueday. Ben Affleck (a.k.a. Batman) and Henry Cavill (a.k.a. Superman), along with the castmates Amy Adams, Jesse Eisenberg, Laurence Fishburne, Gal Gadot, Holly Hunter, Diane Lane, and director Zack Snyder, are scheduled to appear in the installment that promotes the heavily anticipated superhero showdown, which hits theaters March 25.