Costas Georgiou (Greek: Κώστας Γεωργίου; 21 December 1951 – 10 July 1976), also known by his alias Colonel Callan, was a Cypriot-born British mercenary...

Chourmouzios Georgiou (c. 1770–1840), Greek composer and music teacher Costas Georgiou (1951–1976), British Cypriot mercenary Eleni Georgiou (born 1985)...

Greek basketball player Costas Azariadis (born 1943), Greek economist Kostas Biris (1899–1980), Greek architect Costas Georgiou (1951–1976), Greek Cypriot...

following sentences were passed on 28 June 1976: Death by firing squad: Costas Georgiou (aka "Colonel Tony Callan"), 24 (Cyprus/UK) Andrew Gordon McKenzie...

and Costas Georgiou, who had both served in the British army, were sentenced to death for murder. Georgiou was shot by firing squad in 1976. Costas' cousin...

of Angola, assuming command of the formation after the capture of Costas Georgiou. In early 1977, McAleese moved to Rhodesia and enlisted with the Rhodesian...

Republic of Congo 'Johnny' Frost – Operation Market Garden veteran † Costas Georgiou (also known as "Colonel Callan") – Angolan War mercenary † Tony Geraghty –...

Alefantos 1997–1998 Kurt Jara 199800000 Andreas Mouskallis 199800000 Costas Georgiou 1998–1999 Georgios Paraschos 199900000 Slobodan Vučeković 1999–2000...

and Costas Georgiou, who had both served in the British Army, were sentenced to death for murder. Georgiou was shot by firing squad in 1976. Costas' cousin...

in the Sierra Leone civil war as a member of Executive Outcomes. / Costas Georgiou 1951–1976 1975–1976  Angola FNLA Greek Cypriot-born British mercenary...