Additionally, Tao Okamoto plays Mercy Graves, Luthor's assistant. Scoot McNairy plays Wallace Keefe, an employee of Wayne Enterprises who is injured during the final events of "Man of Steel" and becomes a pawn in Lex's planl Patrick Wilson plays the President of the United States. Callan Mulvey plays Anatoli Knyazev. Michael Cassidy plays Jimmy Olsen. Jeffrey Dean Morgan and Lauren Cohan play Thomas and Martha Wayne, Bruce Wayne's deceased parents. Robin Atkin Downes voices Doomsday. Repeating their roles from "Man of Steel" are Harry Lennix as Secretary Calvin Swanwick, Christina Wren as Major Carrie Farris, Michael Shannon as General Zod, and Carla Gugino as the Kryptonian A.I. Kelor.