Regina Rösing studied costume design at the University of Applied Sciences for Design in Hamburg. She worked as a costume assistant and costume designer at Schauspiel Bonn from 1989. Since 1993 she has worked as a freelance costume and set designer in German-speaking countries, including at the Nationaltheater Mannheim, Stadttheater Konstanz, Theater Aarau, Staatstheater Hannover, Staatstheater Wiesbaden, Luzerner Theater, Schauspiel Bonn, Stadttheater Bielefeld, Landestheater Linz, Volkstheater Rostock, Düsseldorfer Schauspielhaus, Staatstheater Oldenburg, Lübecker Theater, Grenzlandtheater Aachen and Theater der Jugend in Vienna.

She has also continuously developed many productions with independent theatres and production companies – mainly in Cologne, Bonn and at the FFT Düsseldorf, often for children’s and youth theatre productions and regularly with Theater Marabu.