Musician and actress Alicia Witt has taken to Twitter to announce that she’s joining the cast of AMC’s hit zombie drama The Walking Dead. proud & overjoyed to get to announce to you today: I'm joining one of the greatest shows ever made.#TheWalkingDead! @WalkingDead_AMC#TWD — alicia witt (@aliciawitty) February 4, 2016 Witt made her acting […]