[6] In 2007, after trials at West Ham United and Derby County, Okkas became the first Cypriot player to move to Spain, signing a contract with Celta Vigo.

[9] Okkas was released from Omonoia, in June 2009, after confronting manager Takis Lemonis on his playing position.

[12] After being released by Anorthosis, Ermis Aradippou became the fourth, and last, team, Okkas would play in the Cypriot First Division.

[16] He scored three goals in his side's failed attempts to qualify for the 2002 World Cup, and was also on target in Euro 2004's qualifying stage, notably against France, in which Cyprus lost 1–2, but with fine displays from Okkas, including a delicate chip that left French keeper Grégory Coupet completely stranded.

[19] After fifteen full playing years as the captain for Cyprus, Okkas announced his retirement from international football on 2 March 2012.

After retiring as a professional football player, Okkas was appointed as an assistant manager in Ermis Aradippou.