Guest Stars Joe Keery as Steve Harrington Rob Morgan as Deputy Powell John Reynolds as Officer Callahan Mark Steger as The Monster Shannon Purser as Barbara "Barb" Holland Co Starring Tinsley Price as Holly Wheeler Anniston Price as Holly Wheeler Aimee Mullins as Terry Ives Chester Rushing as Tommy H. Chelsea Talmadge as Carol Peyton Wich as Troy Cynthia Barrett as Mrs. Marsha Holland Hugh Holub as Scientist Charles Lawlor as Mr. Donald Melvald Cade Jones as James Pete Burris as Hawkins Head of Security Glennellen Anderson as Nicole Christi Waldon as Marissa Ron Roggé as State Trooper David O'Bannon Miles Mussenden as M.P. Officer Patrick Sierra Vemeyer as Ally