Jurgen Prochnow Biography
Jürgen Prochnow was born in 1941, in Berlin. Leading man and character actor of the German Stage and screen. Later he also starred in Hollywood films. He was memorable as the submarine captain in Das Boot/The Boat (1981).
Trivia

Hobbies: skiing, weight training, fitness, swimming, jogging, tennis

Suffered first- and second-degree burns on his cheek while filming a special effects sequence for Dune (1984).

One of his earlier memorable roles was in the ground-breaking 1977 TV film Die Konsequenz (1977), a love story between two homosexuals. The Bayerischer Rundfunk (public TV and radio) station in Bavaria refused to broadcast the film at the time, but audiences who managed to see it were quite touched by what they saw.

Brother of Dieter Prochnow, father of Roman Prochnow and Mona Prochnow.

Dubbed Sylvester Stallone for the German release of Rocky (1976) and Rocky II (1979).
Source provided by imdb (Copyright) - The Internet Movie Database.