J.K. Simmons Mac MacGuff
Allison Janney Bren MacGuff
Elliot Page Juno MacGuff
John Malkovich Producer
Jason Bateman Mark Loring
Jennifer Garner Vanessa Loring
Olivia Thirlby Leah
Michael Cera Paulie Bleeker
Rainn Wilson Rollo
Cameron Bright RPG Nerd
Jason Reitman Director
Eve Harlow Tough Girl
Candice King Amanda, Girl Lab Partner
Emily Perkins Punk Receptionist
Emily Tennant Pretty-to-Goth Girl
Diablo Cody Writer
Valerie Tian Su-Chin
Shane Vieau Set Decoration
Eileen Pedde Gerta Rauss
Kirsten Alter Nurse
Dana E. Glauberman Editor
Rickley W. Dumm Sound Editor
Daniel Clark Steve Rendazo
Mindy Marin Casting
Robyn Ross Vanessa's Friend #2
Kaaren de Zilva Ultrasound Technician
Steven Christopher Parker Guy Lab Partner
Steve Saklad Production Design
Mateo Messina Original Music Composer
Sherry Linder-Gygli Key Hair Stylist
Ian R. C. Levine Second Assistant "B" Camera
Brad Van Arragon Co-Producer
Victoria Down Key Makeup Artist
Kara Lipson Casting
Bryan Korenberg Property Master
Stewart Whelan First Assistant Camera
Darla Fay Bleeker's Mom
Kimya Dawson Songs
Eric Steelberg Director of Photography
Scott Sanders Sound Re-Recording Mixer, Sound Designer
Joseph Drake Executive Producer
Nick South Music Editor
Kevin Tomecek Carpenter
Barney Cabral Supervising ADR Editor
Jeff Witzke Track Announcer
Perry Robertson Supervising Sound Editor
Richard Dwan Jr. Sound Editor
Michael Diner Art Direction
Sandy Cooper Makeup Artist
Margaret Yen Music Supervisor
Daniel Dubiecki Executive Producer
Scott J. Ateah Stunt Coordinator
Doane Gregory Still Photographer
Nathan Kahane Executive Producer
Peter Afterman Music Supervisor
Kelli Konop Co-Producer
Jason Blumenfeld First Assistant Director
Neil Robertson Location Manager
Mason Novick Producer
Stephanie Rossel Script Supervisor
Russell Smith Producer
John Beatty Construction Coordinator
J. Stanley Johnston Sound Re-Recording Mixer
Lianne Halfon Producer
Nick Neutra Foley
Jim Miller Co-Producer
Ken S. Polk Sound Re-Recording Mixer
Sigrid Spade Set Dresser
Cut Chemist Chemistry Teacher
Robert A. Pandini Hairstylist
Catherine Schroer Art Direction
David Lourie First Assistant "B" Camera