[1] During his compulsory military service in the Hellenic Army, he served as an officer on the islands of North-Eastern Aegean Sea, and the Greek mainland.

[4] He was a member of the Popular Orthodox Rally (LAOS), the right-wing populist party of Georgios Karatzaferis where he was a candidate in the 2004 Greek parliamentary elections, taking 5,700 votes.

[6][3] He proclaimed to support "the large centre-right faction with a European orientation" although he declined to run as a candidate in the 2012 legislative elections.

In the 2024 EU elections his party almost doubled its percentage climbing to an astounding 9.3% electing two MEPs[11] Velopoulos has raised objections about the indictment of Golden Dawn's members and he has characterised the arrests of them as a well-played plot οrchestrated "by the domestic government and judicial system".

[12] As a journalist he has worked in a number of radio and television stations, such as "TV Thessaloniki", "Ερμής", "Best", "Top", "Opion", "TeleAsty", where he presented his two major shows "Η Βουλή" and "Ελληνόραμα", in which he promotes his books.

[14] In 2014, Velopoulos advertised a book by the author Ioannis Papazisis entitled "Manuscripts reveal the unknown moments of Christ" through his telemarketing broadcast.

[15][18][19] This elicited widespread criticism from the Greek academic community and mainstream media, which disputed the historicity of these particular artifacts and accused Velopoulos of misleading consumers.