Ross Lynch character Jeffrey Dahmer
Alex Wolff character John 'Derf' Backderf
Anne Heche character Joyce Dahmer
Dallas Roberts character Lionel Dahmer
Vincent Kartheiser character Dr. Matthews
Tommy Nelson character Neil
Harrison Holzer character Mike
Miles Robbins character Lloyd Figg
Liam Koeth character Dave Dahmer
Katie Stottlemire character Penny
Cameron McKendry character Moose
Jack DeVillers character Oliver Zlatka
Adam Kroloff character Burlman
Brady M.K. Dunn character Bossy
Michael Ryan Boehm character Shorty
Jake Ingrassia character Gooch
Ben Zgorecki character Bully
Kris Smith character Ms. Bowles
Gabriela Novogratz character Lisa Watkins
Joey Vee character Hicks
Tom Lepera character Lapolla
Joey Prines character Snarky Slacker
Christopher Mele character Fidele
Brigid Naughton character Melody
Maryanne Nagel character Mrs. Woodard
Joe Fishel character Market Shopper
Dontez James character Charlie Smith
Sydney Meyer character Bridget
Tom Luce character Vice President Walter Mondale
Nancy Telzerow character Carol Backderf
Zachary Davis Brown character Freshman Boy
Dave Sorboro character Steven Hicks
Lily Kozub character Freshman Girl
Susan Bennett character Musical Director
Andrew Gorell character English Teacher
Carmen Gangale character Grocery Store Manager
Lauren Rhodes character Aide
Shane Patrick O'Neill character Restaurant Manager
Nicholas Hulstine character Prom Photographer
