Artist Biography Available in: German rave/techno/trance act from the mid 90’s. Various producers were involved in this project. The first singles were made by Ramon Zenker, Andreas Schneider and Uwe Papenroth. Later other producers joined the project, as the original producers moved on to other projects. The “face” of Perplexer was Marc Olbertz (DJ since 1993). He played as DJ Perplexer at raves and was the interviewee in magazines and on TV.