William H. Macy as Nathan Travers

Til Schweiger as Jonas Herdt

Scott Caan as Randall Sullivan

Thomas Kretschmann as Ludwig Cremer

Lauren Holly as Rachel Travers

Xander Berkeley as Admiral Kentz

Chris Ellis as Samuel Littleton

Carmine Giovinazzo as Buck Cooper

Clark Gregg as Teddy Goodman

Rene Heger as Quartermaster Klause

Sam Huntington as Virgil Wright

Jeremy Sisto as Jason Abers

Ian Somerhalder as Danny Miller

A.J. Buckley as Medical Officer

Andy Gätjen as Christophe

Sascha Rosemann as Lars

Connor Donne as Lt. Bauer

Gavin Hood as Achilles Captain

Alex Prusmack as Andreas

Justin Thomson as Wilhem

Sven-Ole Thorsen as Hans

Patrick Gallagher as Ox

Matt Lindquist as Friedrich

Jim Burke as U821 Kapitan

Roy Werner as U1221 Kapitan

Branden Morgan as Benny Romano

William Gregory Lee as U.S.S. Logan Radarman

Doug Biolchini as U.S.S. Logan Radioman

Tom DeGrezia as Planesman

Gunter Simon as U821 Hydrophone Operator

Sonny Surowiec as U821 Radio Operator

Vanessa Branch as Admiral Kentz's Secretary

Patrick Barnitt as Achilles Helmsman

Eric Parker as German Soldier

Chriss Anglin as Armed Sailor (uncredited)

Leif Holt as German Crew Member (uncredited)

Anthony K. Lewis as Armed Guard #2 (uncredited)

Sam Mathewes as German Soldier (uncredited)

Brad Newman as Prison Guard (uncredited)

Justin Sandler as U429 German Sailor (uncredited)

David Chandler Secor as Radio Operator (uncredited)

David Shae as German Soldier (uncredited)

Daniel Toscano as Swordfish Sailor (uncredited)

Branden Waits as German Soldier (uncredited)

Hans Hernke as Young Sailor (uncredited)