Oliver Mommsen attended the Maria Körber School of Drama in Berlin. Immediately thereafter, an intensive cooperation with the director Stefan Bachmann and the group Gruppe Theater Affekt began. From this, further engagements for the Zürich Festspiele, the Vienna Schauspielhaus and the Volksbühne Berlin (Prater) soon followed.
In 2001, he first began investigating as Kommissar Stedefreund alongside Sabine Postel in the Bremen ›Tatort‹. For the ›Scheherazade‹ episode, he was awarded the 2006 German Television Prize in the category Television Crime Series. In spring of 2019 after 18 years, Oliver Mommsen said goodbye to the Bremen ›Tatort‹.
Most recently, he has appeared in ›The Perfect Secret‹ as well as in ›Nebenan‹ (Next Door) at the St Pauli Theatre. Both plays will feature in the 2022/2023 schedule.
Oliver Mommsen’s loyalty to Bremen continues thanks to the collaboration with the Bremen director André Erkau and the editor Annette Strelow. In 2022, they filmed the ARD film ›Mord oder Watt‹ in Bremerhaven and Cuxhaven. Further projects are under discussion.