Marton was the artistic director of the Vígszínház and professor of the University of Theatre, Film and Television in Budapest.

Marton's interest in theatre took root early in his life, and he was first introduced to the world of opera by his godfather, Hungarian conductor, János Ferencsik.

Marton attended the Secondary School of the Piarist Fathers and graduated from the University of Theatre, Film and Television in Budapest in 1967.

A year later he directed a production of A Doll's House by Henrik Ibsen for the Abbey Theatre in Dublin, in a new version by McGuinness.

As of September 2009, Marton was directing Mozart's The Magic Flute for the Vígszínház, in collaboration with the Hungarian State Opera House.

[5][6] Marton's productions of great emotional resonance were highly acclaimed by critics for revealing a deep psychological intimacy and bringing new life to classics.

[17] Toronto's Soulpepper Theatre Company revealed it severed ties with Marton back in 2015 after a member of its community filed a complaint about sexual harassment.