Attila Jun was born in Seoul in 1973 and studied at the National University there with Philip Kang. In 1998 he became a pupil of Hans Sotin at the Cologne Musikhochschule. A prize-winner in a number of singing competitions, he made his operatic début in Seoul in 1994 as Sarastro, followed by similar rôles. He made his European début in 1998 as Sparafucile at the Stuttgart State Opera, joining the company the following season. In 1999 he made his début as Hunding in Die Walküre in a concert performance at the Rome Opera under Giuseppe Sinopoli and in a staged performance at the Théâtre du Capitole in Toulouse. In the same year he made his début at the Bayreuth Festival as the Third Noble in Lohengrin under Antonio Pappano. Other rôles have included those of the Grand Inquisitor in Don Carlos and Timur in Turandot.