Siemen Rühaak is an actor of 73 (16 mai 1950). Siemen Rühaak has appeared in 19 shows and 4 movies. A performance to be found in the role of Prof. Dr. Conrad Schroth in the series Alarm for Cobra 11. In the cinema, in the role of Fritz in the feature film Das Leben ist kein Kindergarten – Umzugschaos.