A certain voice actor's identity is unlisted in the Severance premiere credits—but that was totally him, right?

First episode in three years sees Innie Mark attempt to reunite his old team of Helly, Dylan, and Irving, and introduces new characters like Ms. Huang

Yet another Hollywood icon, with no need of introduction. Christopher Walken plays Burt in Severance. He won an Oscar for his role in The Deer Hunter, while he was also in Dune: Part Two just last year.