Christopher Walken as Percy Schmeiser

Roberta Maxwell as Louise Schmeiser

Christina Ricci as Rebecca Salcau

Zach Braff as Jackson Weaver

Adam Beach as Alton Kelly

Luke Kirby as Peter Schmeiser

Zoe Fish as Mary Schmeiser

Blake Taylor as Karl Steiger

Andrea del Campo as Brenda Kelly

Martin Donovan as Rick Aarons

Warren Ellis as Mill Worker

Dean Harder as Bob Black

Pathy Aiyar as Vasu Pandit

Monique Alvarez as Jane Doe

Ernesto Griffith as Washington Post Reporter

Anna Hardwick as UK News Anchor

Melissa Hood as Meghan Lewis-O'Connor

Natasha Krishnan as UK / Indian News Anchor

Daina Leitold as Dayna

Sarah-Jane Marquez-Hicks as Ottawa Journalist

Jai Mession as News Anchor

Angela Narth as Chief Justice Beverly McLachlin

Bradley Sawatzky as Ron

Peter Stebbings as

Matthew Stefanson as Sales Clerk

Ron Verwymeren as Judge Lean

Jason Wishnowski as Investigator #1

Chris Glenat as Monsanto Lawyer (uncredited)

Cindy Rose Myskiw as Pie Lady (uncredited)

Steve Pacaud as Farmer (uncredited)

Lorrie Papadopoulos as Professor (uncredited)

Marjorie Roden as Percy supporter (uncredited)

Derek James Trapp as Court Witness (uncredited)