Guillaume comes from a small village in the Vosges mountains. He grew up in the mountains, passionate about history.
At the age of five, he began studying music, particularly the trumpet.
Alongside his high school studies, he enrolled in an amateur circus school.
After three years of juggling, he decided to apply for circus school entrance exams and was admitted to the Centre régional des arts du cirque de Lomme. There, he discovered floor acrobatics under the supportive guidance of Mahmoud Louertani.
He then joined the École de cirque de Bordeaux before entering the Centre national des arts du cirque.
He worked with Gilles Cailleau, Nikolaus, Compagnie BAM, and Christophe Huysman. With them, he discovered the voice on stage, as well as forms of artistic denunciation expressed through poetry, subtlety, and lightness, within an absurd universe that, for him, defines circus.