Paul Rudd as Moe Berg

Mark Strong as Werner Heisenberg

Sienna Miller as Estella Huni

Connie Nielsen as Koranda

Shea Whigham as Joe Cronin

Hiroyuki Sanada as Kawabata

Tom Wilkinson as Paul Scherrer

William Hope as John Kleran

Giancarlo Giannini as Professor Eduardo Amaldi

Pierfrancesco Favino as Martinuzzi

Anna Geislerová as Rathe

Agnese Nano as Mrs. Amaldi

Brian Caspe as Commanding Officer

Demetri Goritsas as Clifton Fadiman

Roy McCrerey as Princeton Conductor

Susan Garfield as Red Sox Fan

Joseph Oliveira as Team Scout

Ted Otis as Radio Show Director

Philip Lenkowsky as NYC Taxi Driver

Bobby Schofield as Bill Dalton

John Schwab as Lefty Grove

Jordan Long as Babe Ruth

Jimmy LeBlanc as First Base Coach

Kristen Anne Ferraro as Baseball Fan

James McVan as Lou Gehrig

Gabriel Andrews as British Colonel

Cristiano Donati as Italian Resistance 2

Rob Lévesque as Red Sox Fan

Dušan Kiš as Italian Resistance

Tim Hackney as Jimmie Foxx

Marco Velutti as Italian Resistance 1

Roman Vangeli as Gangster

Karoline Patrick as Catherine

Jeff Fritz as OS Trainer

Martin Janouš as Franklin Adams

Marc Cram as Karl Friedrich Von Wiezsacker

Hélène Cardona as

Matt Lindquist as

Scott Lipman as U.S Army Pitcher

Thomas Brogan as Fenway Fan

Benjamin Crocker as Guy Eating Peanuts

Joe Oliveira as Fenway Fan

Timur Sibatov as Italian Civilian

Scott Sederquist as Fenway Fan

Dean Littlefield as Baseball Fan

Paul Giamatti as Sam Goudsmit

Guy Pearce as Robert Furman

Jeff Daniels as Bill Donovan

Dave Quay as Grogan

Jan Slovák as Joliot

Petr Meissel as Diebner

Zuzana Hodková as Scherrer's Wife

Petr Opava as Cantor

Karel Dobrý as Cold-Eyed German