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).