Born in Berlin, he was a trained carpenter and commercial artist. The entertainer Harald Juhnke was one of the sponsors of the curly headed entertainer. In 1959 Dahlen made his cinema debut in Kurt Meisel's comedy "Love forbidden - marriage allowed". In 1964, Dahlen's career began in television. The actor, also known in Switzerland and Austria, has appeared in more than 35 feature films. He stood in front of the camera with Loni von Friedl, Elke Sommer, Claus Biederstaedt, Rolf Becker and Willy Millowitsch, among others. Dahlen became known to a wide audience in 1978 in Michael Pfleghar's series "Klimbim". Together with Ingrid Steeger and Iris Berben, Dahlen also played in the series "Two Heavenly Daughters". In "A heart and a soul" he took over the role of the son-in-law of "Ekel Alfred" after Diether Krebs left. He also took part in television series such as “The Commissioner”, “The Men from K3”, “Coast Guard” or “Tatort”.
U47 - Kapitänleutnant Prien
1958
Das Mädchen und der Staatsanwalt
1962
Sabine und die hundert Männer
1960
Escape from East Berlin
1962
Tender Sharks
1967
Café Oriental
1962
In the Wild West
1964
Blind Justice
1961
The Females
1970
Und sowas nennt sich Leben
1961
Auch ich war nur ein mittelmäßiger Schüler
1974
Duel at Sundown
1965
Davon träumen alle Mädchen
1961
Aufs Ganze
1989
Mensch, ärgere dich nicht
1972
Willi wird das Kind schon schaukeln
1972
Bei Pfeiffers ist Ball
1966
The World's Craziest Army
1958
Zu jung für die Liebe?!
1961
Jetzt dreht die Welt sich nur um dich
1964
The Butterfly
1970
Kreuzberger Liebesnächte
1980
Die Brücke von Zupanja
1975