Career
Theophilou started his career at Apollon"s Academy and he has been the captain of Apollon. On 1 June 2010 he signed a 2-year contract with AEK Larnaca. A year later he returned to Apollon.
In July 2012, he signed a two year contract with 2011-2012 Champions AEL Limassol.
Two years later, he joined Aris Limassol, whick competes in Cypriot Second Division, in order to assist the club return to Cypriot First Division. By joining Aris Limassol, became one of the players that have played for three main Limassol teams.
