In 1952 he was hired by German director Kurt Hoffmann for the comedy Klettermaxe (translated “Climber”), where Dahl would be the stunt double for the film’s lead actor Albert Lieven.

He was featured in about 40 productions, playing the stunt double for actors like Heinz Rühmann, Curd Jürgens and Kirk Douglas.

In 1959, Dahl found international attention when he walked the railing on the roof of the Empire State Building in New York City, finishing with a handstand.

He received the same amount of attention when he jumped from the 47 m (154 ft) crane in the Harbor of Wilhelmshaven, during which he broke his spine and spent the following year in the hospital.

During his time as a stuntman, Dahl suffered more than 100 bones fractures, and spent a total of 4 years of his life in the hospital.