Guest Stars Mark Milner as Himself (Mark Milner - Canadian Military Historian) Jann Witt as Himself (German Naval Association) Werner Hirschmann as Himself (Werner Hirschmann - Former Chief Engineer of U-190) Frank Scanlon as Himself (Frank Scanlon - Former Merchant Seaman) Ken Hansen as Himself (Ken Hansen - Dalhousie University) Peter Cock as Himself (Peter Cock - Former Royal Canadian Navy Seaman) Andrew Lambert as Himself (Professor of King's College London) Peter Petersen as Himself (Engineer of U-518) Terrence Bulloch as Himself (RAF Bomber Pilot) Walter Wittig as Himself (Radio Operator of U-518) Cyril Hill as Himself (Gunner, Royal Navy Harperley) Rocky Schoenrock as Sonar Operator of USS Inch Bruce Menzies as Himself (Sonar Operator of HMCS Waskesui) Walter Schmietenknop as Himself (Engineer of U-767) Doug Harrington as Himself (Navigator - RAF)
