Born in Toulouse, Gregori became interested in cinema very early on - from his childhood he was fascinated by the seventh art, through films such as Once upon a time in America, The Big Blue, The Shining, etc... and also the theatre with plays such as Scaramouche, La doubles inconstances etc...
Until the age of 24 he regarded the acting profession as an inaccessible dream, but in spite of everything he decided to move to Paris - once there he launched himself into the world of theatre, and took his first steps working on short films. Through these encounters, he enlarged his experience of theatre, film and television.
In 2007 he started to write scripts for the short films "Douce mélodie" and "Escapade". In 2010 he played Lysander in “A Midsummer Night’s Dream”. In 2011 he acted in “Auguries of innocence”, a short film in 3D. In 2012 he played a principal role in the internet series “Du sang , du sang, du sang", acted in the play “Flop Dating”, and acted in English for the play “An Inspector Calls”.
He has toured with The Last Baguette in Dracula - a Terrifying Comedy in France and the UK.