Marcel Brunner is an internationally sought-after bass-baritone, performing extensively in both opera and concert repertoire.

From 2018 to 2024, he was a member of the ensemble at the National Theatre Mannheim, where his roles included Figaro (Le nozze di Figaro), Leporello (Don Giovanni), Papageno (Die Zauberflöte), Bluebeard (Bluebeard's Castle), Leander (The Love for Three Oranges), Alberich and Gunther (The Ring in One Evening), the Hermit (Der Freischütz), and numerous other leading bass-baritone roles. Since September 2024, Marcel Brunner has been working as a freelance artist.

Guest engagements have taken him to Deutsche Oper am Rhein, Leipzig Opera, Stuttgart State Opera, Badisches Staatstheater Karlsruhe, Aalto-Musiktheater Essen, Dortmund Opera, Theater Freiburg, Theater Bonn, the Estates Theatre Prague, Grand Théâtre de Luxembourg, Tyrolean State Theatre Innsbruck, Vorarlberg State Theatre Bregenz, Opera Ballet Vlaanderen in Antwerp and Ghent, Sommeroper Selzach, and the Berlin Philharmonic Easter Festival in Baden-Baden.

As a concert soloist, he has appeared at the Berlin Philharmonie, Tonhalle Düsseldorf, deSingel Antwerp, Pfalzbau Ludwigshafen, the Ghent Festival at St Bavo's Cathedral, and the International Music Festival at Speyer Cathedral. His concert repertoire encompasses the major bass and baritone works, including Mendelssohn's Elijah, Beethoven's Symphony No. 9, Verdi's Requiem, Bach's St Matthew Passion, St John Passion and Mass in B minor, as well as Haydn's The Creation.

In both opera and concert, Marcel Brunner has collaborated with conductors including Alexander Soddy, Axel Kober, Alejo Pérez, Duncan Ward, Roberto Rizzi Brignoli, Timothy Redmond, Christoph Gedschold, Hans-Christoph Rademann, and Kaspar Zehnder, and with stage directors such as Calixto Bieito, Barbora Horáková, Ersan Mondtag, Jona Kim, Neil Berry Moss, Nigel Lowery, Tatjana Gürbaca, Ivo van Hove, Lorenzo Fioroni, and Jens-Daniel Herzog.

He has also participated in several recordings of rarely performed repertoire for radio and CD, including productions for SWR and Deutschlandfunk.

In September 2025, together with pianist Doriana Tchakarova, Marcel Brunner released his debut album REMEMBRANCE on the renowned label Hänssler Classic. The recording received widespread critical acclaim and was nominated for the German Record Critics' Award (Preis der deutschen Schallplattenkritik).

In June 2026, he was awarded the OPUS KLASSIK in the category Young Artist of the Year.

Marcel Brunner studied voice at the Karlsruhe University of Music with Professor Christiane Libor and Stephan Klemm, and at the Mannheim University of Music with Professor Snežana Stamenković. He currently receives vocal guidance from Christian Oldenburg.

Further important artistic inspiration came through masterclasses with Julia Varady, Michelle Breedt, Markus Eiche, Rudolf Piernay, Hartmut Höll, Burkhard Kehring, and Peter Anton Ling.

He was a scholarship recipient of Live Music Now Yehudi Menuhin Rhein-Neckar and the Richard Wagner Association Heidelberg.

Born in Bad Mergentheim in the Tauber-Franconia region of Germany, Marcel Brunner was immersed in music from an early age. As a child and teenager, he sang in several choirs, studied piano, and played the cello both in orchestra and in a string quartet.

Marcel Brunner lives in Leipzig with his family.