There's 6 Alastor:
Alastor (Grc) - NS black metal
Alastor (Aut) - black metal
Alastor (Hrv) - heavy/thrash metal
Alastor (Pol) - thrash metal
Alastor (Prt) - black/thrash metal
Alastor (Rus) - underground ---------------------------------------------------------------------- Alastor (Prt) - black/thrash metal
Biography: Alastor is a Black Thrash Metal band that was formed in 1988 by JA (guitars/vocals) and JF (drums), who would later meet again in Decayed. A few songs were composed in some months of rehearsals, but the band went nowhere.

Read more about Alastor on Last.fm.