Efthymis Filippou was born January 18, 1977 in Acharnes, Athens, Greece. He is a Greek author, playwright and screenwriter. He has also been active as a journalist and copywriter. Together with Yorgos Lanthimos, he wrote "Dogtooth", "Alps", "The Lobster", "The Killing of a Sacred Deer", and "AND". He has also worked with the Greek directors Babis Makridis ("Pity") and Athina Rachel Tsangari ("Chevalier"). Filippou has written many plays "Bloods" (2014), "Excuse 4&5" (2016), "Rob" (2017) and "George" (2020).