as Eleven / Jane Hopper Gaten Matarazzo as Dustin Henderson Caleb McLaughlin as Lucas Sinclair Noah Schnapp as Will Byers Sadie Sink as Max Mayfield Natalia Dyer as Nancy Wheeler Charlie Heaton as Jonathan Byers Joe Keery as Steve Harrington Dacre Montgomery as Billy Hargrove Maya Hawke as Robin Buckley Priah Ferguson as Erica Sinclair Cara Buono as Karen Wheeler Recurring Jake Busey as Bruce Lowe Joe Chrest as Ted Wheeler Catherine Curtin as Claudia Henderson Andrey Ivchenko as Grigori Michael Park as Tom Holloway Yasen Peyankov as Russian scientist Francesca Reale as Heather Holloway Alec Utgoff as Alexei Brett Gelman as Murray Bauman Cary Elwes as Larry Kline Peggy Miley as Doris Driscoll Holly Morris as Janet Holloway Notable guests Sean Astin as Bob Newby Rob Morgan as Officer Powell John Reynolds as Officer Callahan Randy Havens as Scott Clarke Tinsley and Anniston Price as Holly Wheeler Caroline Arapoglou as Winnie Kline Allyssa Brooke as Candice Will Chase as Neil Hargrove Christopher Convery as young Billy Jacey Sink as young Max Beth Riesgraf as Billy's mother Susan Shalhoub Larkin as Florence John Vodka as General Stepanov Arthur Darbinyan as Dr. Zharkov Misha Kuznetsov as Commander Ozerov Gabriella Pizzolo as Suzie Paul Reiser as Sam Owens Matty Cardarople as Keith Michael Silvio Fortino as Ricky the Gas Station Cashier Episodes Production Development Levy noted in November 2015 that he and the Duffer Brothers had already begun planning a potential third season, saying, "We are not gonna be caught off guard and we don't wanna be making stuff up like the day before we have to write it and make it, so we are definitely optimistic and we have started thinking ahead." The Duffer Brothers anticipate having about four to five seasons to work with, but do want to "have a really finite ending" while the series is still at a height of success, according to Matt, rather than letting it draw out indefinitely. In August 2017, the Duffer Brothers confirmed there would be a third season, with the likelihood of one more season following that, with Ross saying, "We're thinking it will be a four-season thing and then out". However, executive producer Shawn Levy later suggested that either four or five total seasons were possibilities, claiming that "the truth is, we're definitely going four seasons and there's very much the possibility of a fifth. Beyond that, it becomes, I think,