Kathryn Hahn has joined the cast of Marvel's Disney+ series WandaVision, which will also see Kat Dennings and Randall Park reprise their respective MCU roles as the scientist Darcy from Thor and government agent Jimmy Woo from Ant-Man and the Wasp. Elizabeth Olsen and Paul Bettany are set to return as Wanda and Vision, the latter of whom died in Avengers: Infinity War and did not come back for Avengers: Endgame. WandaVision is described as a cross between a typical MCU epic and a sitcom, which explains why Hahn has been cast as Wanda's nosy neighbor. Elsewhere, …