Designated Survivor, the upcoming ABC drama series starring Kiefer Sutherland, has added four new cast members, including Maggie Q, Kal Penn, Italia Ricci and Natascha McElhone. The show centers around Sutherland's character Tom Kirkman, a low-level member the U.S. Cabinet who's made president following an attack that wiped out the rest of the political leaders during the State of the Union address. Penn in Harold and KumarAccording to TVLine, Nikita actress Maggie Q will star as the show's lead FBI agent who's investigating the bombing that struck Washington D.C.