Csaba Polgár as Péter Horvát

Eric Peterson as Hogarth

Ádám Fekete as Zsolt Horvát

Kate Vernon as Camille

Ildikó Bánsági as Erzsi

Angelo Tsarouchas as Adrian Hines

Marshall Williams as Chris

Benz Antoine as Jerome Vick Jr.

Andrew Moodie as Agent Simmons

Mark Day as FBI Agent

Jenna Warren as Isobel

Diána Magdolna Kiss as Dóra

Brianna Barnes as Young Emma May

Jesse Aaron Dwyre as Young Hogarth

Stuart Fink as Young Rappaport

Roger Dunn as Prof Learney

James Bradford as General Steven Fred Easterland

Jocelyne Zucco as Lilian Contino

Paulette Sinclair as Marina

Al Maini as Rappaport

Bobbi Charlton as Mai Ling

Faye Menzies as Mrs. Vick

Sloan Thompson as Female Reporter (voice)

Jodi Larratt as Journalist 2

Steve Garfanti as Hogarth #3

Rj Copan as Joe

Jennifer Vallance as Bespectacled Woman

Xavier Sotelo as Local Man #2

Balázs Veres as Man on Street

Bradley J. Chowace as Nazr Shaheen

Kimberly Bowie as Retired Stripper / Party Guest

James Warren Raynard as Theater Student

Guy Buller as Young Easterland

Eldon Hunter as Student

Lisa Andry-Dargel as Emma Mae

Helena-Alexis Seymour as Josaphine

Ferenc Pusztai as Vak masszor

Aron Tager as Linguistics Professor

Charlie Ebbs as Peter Daney

Peter James Haworth as Robert Smith

Ferenc Pusztai as Masseur

Paul Whitney as General

Robert Reynolds as Man in Suit

Jen Vallance as Woman with Glasses

Emily Lawson as Young Lilian Contino

Csók Lehel as Young Péter

Kardos-Pinter Kende as Young Zsolt

Jennilee Murray as Sabina - NBC Reporter

Michelle Leblanc as Suzy

Sarita Van Dyke as Waitress

Deneisha Henry as Kim

Sarah Dacey Charles as Bartender

Carrie Marston as Student

Sally Clelford as Stephanie Horn

Mireille Gagné as Student

Candice Fraser as Retired Stripper / Party Guest

Megan Weckwerth as Student

Roseline Mouana as Stewardess

Karl Claude as Bury Books

Les Vandor as Activist

Marianne Smiley as Adrian's Assistant

Brendon Keel as Sam

Jim McNabb as Gerry Montgomery

Norm MacQueen as Emilio Rifkin

Trie Donovan as Texan Beauty

Jurgen Osvald Vollrath as LA Paloma Security Guard

Antonio Najera as Local Man #1

Howard Harris as Homeless Man #1

Ross David Wilson as Homeless Man #2

Phil Plait as Crash Course Host

Rejean Meyer as Committee Member #1

Richard Joseph Chiarelli as Committee Member #2

Joel Oliver as Committee Member #3

Ken Fernández as Donald Prosthero

Anyankiu Precious as Librarian

Boscodi Istvan as Saturnus

Pierre Robert Groulx as Fulbright Scholarship Holder

John Eric Ladd as Dean

Corey Jovanovic as Security Guard #1

Don Gough as Security Guard #2

Jennilee Murray as Reporter

Daniel Richer as Physicist

Svent-Isvany Akos as Expert 1

Tyagi Pallava as Expert 2

Zhang Rade as Anchorman

Alex Beaudoin as Journalist 1

Rick Cousins as Lead Scientist

Cliff Ware as Theoretical Mathematician

Attila Clemen as Young Scientist

Patrick Busby as Journalist

Kimothy Walker as News Team 1

Derick Fage as News Team 2

Katherine Dines-Craig as News Team 3

Kathleen A. Donovan as News Team 4

Laura Castella as News Team 5

James Franciscus as Nasa Archive Storyteller (archive footage from 'Seeds of Discovery', 1970)