Equally at home on both the concert and opera stages, Christian Andreas is praised for his “remarkable, strikingly focused baritone voice” (PAMINA Online-Magazin).

Since his professional debut in 2013 as soloist in Bach's St. Matthew Passion under the baton of Helmuth Rilling at the Teatro del Lago in Chile, he has performed across Europe, Asia, and the Americas, most notably at the Festspielhaus Baden-Baden in Rossini's L’Italiana in Algeri (“Käpt’n Bone”) in 2016.

He joined the Royal College of Music International Opera School for performances of Poulenc’s Les Mamelles de Tirésias (Presto) and Janáček’s The Cunning Little Vixen (Harasta) at the Britten Theatre in London in 2017. The following year he performed with the Royal Philharmonic Orchestra at Cadogan Hall, the Orchestra di Padova e del Veneto in Italy, and at the Verbier Festival in Switzerland, where he sang Il Conte di Monterone in Verdi’s Rigoletto.

In 2019 he made his US operatic debut as Papageno in Mozart’s Die Zauberflöte at the Aquilon Music Festival, Oregon. From September 2019 to July 2021 he was a member of the International Opera Studio at the Opéra National de Lyon in France. Since 2022 he has been an ensemble member of Regents Opera London.

He joined Grange Park Opera in 2024 as Guccio in Puccini’s Gianni Schicchi alongside Sir Bryn Terfel and returned in 2025 and 2026 for further performances. This season also saw his debut as baritone soloist in Bernstein’s Chichester Psalms at both the Royal Festival Hall with the Philharmonia Orchestra conducted by Marin Alsop, and at the Royal Albert Hall with the Royal Philharmonic Orchestra under the baton of Vasily Petrenko.

Christian Andreas holds a Master of Music in Vocal Performance from the Royal College of Music, London, and a Bachelor of Music in Opera Performance and Vocal Pedagogy from the Hochschule für Musik Karlsruhe.