Jeffrey Dahmer

Ross Lynch

John 'Derf' Backderf

Alex Wolff

Dr. Matthews

Vincent Kartheiser

Joyce Dahmer

Anne Heche

Lionel Dahmer

Dallas Roberts

Dave Dahmer

Liam Koeth

Lloyd Figg

Miles Robbins

Freshman Boy

Zachary Davis Brown

Carol Backderf

Nancy Telzerow

Freshman Girl

Lily Kozub

Neil

Tommy Nelson

Moose

Cameron McKendry

Mike

Harrison Holzer

Mr. Burlman

Adam Kroloff

Bossy

Brady Dunn

Mr. Fedele

Christopher Mele

Melody

Brigid Naughton

Penny

Katie Stottlemire

Bossy

Brady M.K. Dunn

Gooch

Jake Ingrassia

Shorty

Michael Ryan Boehm

Bully Jock

Benjamin Zgorecki

Charlie Smith

Dontez James

Bully Jock

Ben Zgorecki

Ms. Bowles

Kris Smith

Oliver Zlatka

Jack DeVillers

Lisa Watkins

Gabriela Novogratz

Gaby Novogratz

Steven Hicks

Dave Sorboro

Grocery Store Manager

Carmen Gangale

Snarky Slacker

Joey Prines

Mr Hicks

Joey Vee

Shorty

Michael Ryan

Mr Lapolla

Tom Lepera

Mrs Woodard

Maryanne Nagel

Bridget

Sydney Meyer

Aide

Lauren Rhodes

Vice President Walter Mondale

Tom Luce

Restaurant Manager

Shane Patrick O'Neill

Market Shopper

Joe Fishel

English Teacher

Andrew Gorell

Musical Director

Susan Bennett

Prom Photographer

Nicholas Hulstine

Bus Student 1 (uncredited)

Clayton Frank

Mall Shopper (uncredited)

Lou Consolo