He has three,
His full name is
Stefan James Donald John Abingdon
Stefan abingdons birthday is on the 19 of January
Kyle and someone else
Stefan Antonio Salvatore
Stefan Drewicz's birth name is Stefan Gritzmann.
Stefan Edberg's birth name is Stefan Bengt Edberg.
Stefan Uhrik's birth name is Stefan Uhrk.
Stefan Kleinkrieg's birth name is Klein, Stefan.
Stefan Raab's birth name is Stefan Konrad Raab.
Stefan Pinto's birth name is Stefan Joel Pinto.
Stefan Sims's birth name is Stefan Scott Sims.
Stefan Sonnenfeld's birth name is Konrad Stefan Sonnenfeld.
Stefan Sharff's birth name is Stefan Leon Lerner.