Christos Theofilis is a Greek visual artist known for founding the alternative cultural organization 'Art Act' in 2000. 'Art Act' became a significant hub for artists and art administrators, fostering a space for productive meetings and collaborations. This initiative came after a period where Theofilis had somewhat withdrawn from the commercial art scene, during which he continued to work tirelessly, guided by an inner strength to innovate his artistic expressions. His work has been described as embodying various versions of plasticity and expression, earning him praise from art critics like Costas Stavropoulos, who referred to him as a "snatcher of the visual gaze" and an "alchemist of pictures".

Theofilis has also been involved in curating art exhibitions and has served as an art critic for several Greek newspapers and magazines. His contributions extend to writing columns in publications like "Η Αυγή" and "Ο Χρόνος" among others. He has also published several limited-edition albums, showcasing his work alongside texts by notable critics and historians.

Theofilis continues to live and work in Athens, Greece, where he has maintained his influence in the Greek art community through his various projects, including the Art Act Institute established in 2007. His activities span across multiple platforms, including organizing art events, writing, and maintaining a significant presence in the discourse on contemporary art in Greece.