Inspired by true events, Olympic swimmer Harry Melchior defects from East Germany in the 1960s and hatches a daring plot to help his sister and others flee East Berlin through a 145-yard underground tunnel.

Heino Ferch
as Harry Melchior

Nicolette Krebitz
as Friederike " Fritzi " Scholz

Sebastian Koch
as Matthis Hiller

Alexandra Maria Lara
as Lotte Lohmann

Claudia Michelsen
as Carola Hiller

Felix Eitner
as Fred von Klausnitz

Mehmet Kurtuluş
as Vittorio Castanza

Heinrich Schmieder
as Theo Lohmann

Uwe Kockisch
as Oberst Krüger

Karin Baal
as Marianne von Krausnitz