A former hard rock drummer, Zafiriou is known as one of the founding members of bands Pink Cream 69, Place Vendome and Unisonic.
Kymera recorded two EPs with Zafiriou and Deris before they left to form the band Pink Cream 69 with guitarist Alfred Koffler and bassist Dennis Ward in 1987.
[4] Zafiriou and Pink Cream 69 bandmate Dennis Ward have also worked with two projects together with ex-Helloween vocalist Michael Kiske: Place Vendome, a melodic rock studio project created by the record company Frontiers Records, and Unisonic, a hard rock band managed by Zafiriou that released their first album and did the first world tour in 2012, also marking the first full collaboration by ex-Helloween members Michael Kiske and Kai Hansen in a band since Kai's departure from Helloween.
[citation needed] Zafiriou also recorded albums and played a few shows with bands Axxis, Krokus and with vocalist D. C. Cooper, as a drummer.
[5] On 6 September 2016 Zafiriou announced his retirement as a professional drummer, remaining his job as music manager.