Argyris Theos was born in Athens on 1963 and a graduate of University of Athens in economics. In 1983 he entered the Stavrakos School, where he got a cinematography degree three years later. One year before his completion at Staurakos School he took part in the seminar  L’una citta in cinema in L"Acquila of Italy and at the same time he starts to work as an assistant cameraman. 

Argyris Theos is an active member of the cinematography mailing list, and a member of the CML grand jury. In the past he has been an affiliate of Eastman Kodak Co, commenting on stocks that were about to be released and he is also a Sony Independent Certified Expert (ICE) on camcorders. On 2005 he got awarded by Greek Television as director of photography for the  Children of Niovi. He became interested in stereography back in 2006 (pre-Avatar times). He owns his own mirror rig, a 3Dfilmfactory Indie. 

On 2011 he received a scholarship from Media 2011 for S3D Campus in Paris. From April 2011 till March 2012, he accepted a yearly contract as DoP to the Greek National Television (ERT SA). 

Argyris Theos has designed lighting for award ceremonies and other events and occasions requiring a DoP who understands LD. Latest big job was the opening ceremony of the new Olympic Air airline, a 4 hour show attended by 7000 people.

Throughout his carrier Argyris Theos has worked as director and director of photography for many films, television series, commercials as well as 51 theatrical plays and stage performances. He is also font of shooting shorts, when he has the chance, and interacting with young directors, a few of whom have been awarded prizes.