Stranger Things Season 4 Episode 4
Chapter Four: Dear Billy
Max is in grave danger... and running out of time. A patient at Pennhurst asylum has visitors. Elsewhere, in Russia, Hopper is hard at work.
Guest Stars
Dacre Montgomery
Billy Hargrove
Eduardo Franco
Argyle
Ed Amatrudo
Director Hatch
Myles Truitt
Patrick McKinney
Robert Englund
Victor Creel