S3, E16: Chuck begins to have disturbing dreams, and believes a recent dream predicts danger for a visiting head of state. General Beckman (recurring guest star Bonita Friedericy), however, is unconvinced and assigns Chuck to meet with CIA psychiatrist Dr. Leo Dreyfus (guest star Christopher Lloyd -- Back to the Future, Taxi). Meanwhile, Ellie gets surprising news and Anna (former series star Julia Ling) returns to the Buy More to talk to Morgan.