[1][2] Born on 6 August 1935 in Gazi, Athens, to refugee parents from Pontus and raised in Aigaleo, Serafidis had a particularly difficult childhood like most children of that time before, during and after World War II.

His older brother Lambis, who was an international striker at Apollon Athens, brought him at the age of 14 to his club.

This action resulted in his dismissal of and the coach of AEK at the time, Branko Stanković did not proceed in a substitution sending the forward and the club's star player, Mimis Papaioannou to replace Serafidis under the goalposts for the remaining 5 minutes.

[8] Serafidis was a permanent member of the Greece national team, even though he had only one appearance in an official match in the 4–0 away defeat against Poland on 20 May 1963.

He worked for many years with the club's goalkeepers and later on he undertook similar duties for the AEK Athens Academy.