Gábor Hellebrandt is responsible for the inception of the horror film 'Post Mortem' (2020) and is also its creative producer and its ghost.

As a producer, he is a member of the Hungarian Film Academy.

Gábor Hellebrandt has been working as an urban and hip-hop dance choreographer since the beginning of the 1990s. He received a world champion silver medal in 2017 in the urban dance style. He has been in several commercials, music videos, and films as an actor ('St.Hubertus', Up!: 'Day', 'The Exam'). He was also the writer and creative director, as well as the martial arts and movement choreographer (as a G1 level Krav Maga fighter) of many multiple-award-winning commercials ('Zwack Unicum', 'Vilmos', 'The Attic'). He was the creative supervisor of the historical thriller 'Trezor' (2018), which was nominated for the International Emmy Award and won 8 Hungarian Film Awards.

Since 2014, he is the co-owner, CEO, and creative producer of the commercial and film production company Bergendy and Sons Ltd.