J.K. Simmons Mac MacGuff
Elliot Page Juno MacGuff
Jennifer Garner Vanessa Loring
Jason Bateman Mark Loring
Michael Cera Paulie Bleeker
John Malkovich Producer
Allison Janney Bren MacGuff
Eve Harlow Tough Girl
Candice King Amanda, Girl Lab Partner
Rainn Wilson Rollo
Kelli Konop Producer
Nathan Kahane Executive Producer
Olivia Thirlby Leah
Mindy Marin Casting
Emily Tennant Pretty-to-Goth Girl
Valerie Tian Su-Chin
John Dekker Chief Lighting Technician
Cameron Bright RPG Nerd
Jeff Witzke Track Announcer
Shane Vieau Set Decoration
Mason Novick Producer
Doane Gregory Still Photographer
Sherry Linder-Gygli Key Hair Stylist
Robyn Ross Vanessa's Friend #2
Jason Reitman Director
Darla Fay Bleeker's Mom
Emily Perkins Punk Receptionist
Richard Dwan Jr. Sound Editor
Paul Arthur Hartman Set Dresser
Victoria Down Key Makeup Artist
Eileen Pedde Gerta Rauss
Perry Robertson Supervising Sound Editor
Lori West Art Department Coordinator
Rickley W. Dumm Sound Editor
Nick South Music Editor
Kara Lipson Casting
Scott Sanders Sound Re-Recording Mixer, Sound Designer
Michael Diner Art Direction
Robert A. Pandini Hairstylist
Scott J. Ateah Stunt Coordinator
Steve Saklad Production Design
David Lourie First Assistant "B" Camera
Dana E. Glauberman Editor
Nick Neutra Foley
Peter Afterman Music Supervisor
Kirsten Alter Nurse
Michael Church Set Dresser
Diablo Cody Screenplay
Steven Christopher Parker Guy Lab Partner
Brad Van Arragon Producer
John Beatty Construction Coordinator
John Clothier Camera Operator
Eric Steelberg Director of Photography
Joseph Drake Executive Producer
Jason Blumenfeld First Assistant Director
Monique Prudhomme Costume Design
Sandy Cooper Makeup Artist
Sergio Lavilla Set Dresser
Daniel Clark Steve Rendazo
Marty Coady Best Boy Grip
Kaaren de Zilva Ultrasound Technician
Mateo Messina Original Music Composer
Margaret Yen Music Supervisor
Ian R. C. Levine Second Assistant "B" Camera
Sierra Pitkin Liberty Bell
Lianne Halfon Producer
Cut Chemist Chemistry Teacher
Ken S. Polk Sound Re-Recording Mixer
Bryan Korenberg Property Master
Michael Mayo Rigging Gaffer
Kimya Dawson Songs
Daniel Dubiecki Executive Producer