Born in 1968 in Warsaw. After high school, he was a student in a school of pantomime and acting school in Switzerland, where he lived for 15 years. He attended linguistic schools in France and Australia. In 1996 he completed the studies at the Faculty of Directing at PWSFTViT in Łódź under Krzysztof Kieślowski’s artistic supervision. He has received numerous awards at Polish and international film festivals, among others at the 61st Film Festival in Venice for his Swiss-Belgian cinematic debut A Long Winter without Fire (Cała zima bez ognia). His second film for cinema, Courage (Wymyk),received awards at festivals in Vilnius, Gdynia and Warsaw. Greg has also c-authored directed the acclaimed Londyńczycy series and some criminal series, such as Paradoks and Zbrodnia. He is a member of the Polish and Swiss Film Academies.