Guest Stars Joe Keery as Steve Harrington Noah Schnapp as Will Byers Joe Chrest as Ted Wheeler Rob Morgan as Deputy Powell John Reynolds as Officer Callahan Mark Steger as The Monster Co Starring Susan Shalhoub Larkin as Florence Tobias Jelinek as Lead Agent Catherine Dyer as Agent Connie Frazier Pete Burris as Hawkins Head of Security Jerri Tubbs as Diane Hopper Lucius Baston as Technician Ellie Graham as Sara Hopper