In Berlin in 1961, an American soldier and a German engineer join forces to build a tunnel under the Berlin Wall in order to smuggle out refugees, including the soldier's East German girlfriend.
Sandy Mueller
Richard Thomas
Emerich Weber
Horst Buchholz
Martin Komansky
José Ferrer
Ilse Morrell
Ute Christensen
Joachim Lentz
Jacques Breuer
Georg Heptner
Nicholas Farrell
Bruno Balderbach
Kenneth Griffith
Dr. Lentz
Robert Freitag
Phil
Gerald W. Abrams
Butcher Customer
Ilse Bahrs
Wolf Lentz
Pasqual Breuer
Klaus Schoenemann
Carl Duering
German Border Guard
Josef Ernst
Intelligence Officer
Klaus Götte
Herr Klemnitz
Günther Maria Halmer
Woman in Crowd
Irene Jarosch
Konrad Moss
Wolfgang Jörg
Marta Kurzman
Charlotte Kerr
Herr Weber
Hans Madin
Workman
Joachim Mock
Frau Heptner
Dorothea Moritz
Lt. Geller
Peter Neusser
Karl
Uwe Paulsen
Frau Lentz
Eva Ingeborg Scholz
Vopo
Jochen Schroeder
Greta Dohr
Katharina Seyferth
Herr Dohr
Walter Tschernich
Herr Heptner
Heinz Weiss
Vogel Chief Officer
Georg Richard Wenkhaus
Greta's Friend
Inge Wolfberg