Miles Joris-Peyrafitte Director, Screenwriter, Original Music Owen Campbell Jack Actor Charlie Heaton Mark Actor Amandla Stenberg Sarah Actor John Scurti Detective Erickson Actor Scott Cohen Tom Actor Mary Stuart Masterson Karen Actor Annemarie Lawless Margaret Actor Andrew Polk Jeff Actor Billy Thomas Myott James Actor Madison Harrison Screenwriter Sean Patrick Burke Producer Justin Lothrop Producer Brent Stiefel Producer Joseph Mastantuono Producer Charles Stiefel Executive Producer Todd Stiefel Executive Producer Patrick Higgins Original Music Caleb Heymann Cinematographer Abbi Jutkowitz Film Editing Rebecca Dealy Casting Jessica Kelly Casting Audrey Turner Production Design Joshua Owens Art Director Allison Littrell Set Decoration Miyako Bellizzi Costume Design