Joyce Byers
Jim Hopper
Mike Wheeler
Eleven
Dustin Henderson
Lucas Sinclair
Nancy Wheeler
Jonathan Byers
Karen Wheeler
Dr. Martin Brenner
Ted Wheeler
Steve Harrington
Officer Powell
Lonnie Byers
Barbara Holland
Officer Callahan (as John Paul Reynolds)
Will Byers
The Monster
Benny Hammond
Cynthia
Earl
Agent Connie Frazier
Scott Clarke
Lead Agent
Mr. Melvald
Sandra
Holly Wheeler
Tommy Hagan
Florence
Carol Perkins
Agent Repairman (as Robert Walker-Branchaud)
Middle School Student (uncredited)
Hawkins Police Officer (uncredited)
Middle School Kid (uncredited)
Townsperson (uncredited)
Lab Tech #1 (uncredited)
Search Party (uncredited)
Fighting Kid (uncredited)
Lab Tech #2 (uncredited)
Firefighter (uncredited)
Salchipapa Singer (spanish promo) (uncredited)