There are multiple artists named Alastor. 1. Alastor, a Greek NS black metal band. 2. Alastor, an Austrian black metal band. 3. Alastor, a Croatian heavy/thrash metal band. 4. Alastor, a Polish thrash metal band. 5. Alastor, a Portuguese black/thrash metal 6. Alastor, Russian artist. 7. Alastor, a Swedish Psychedelic Doom Metal band. 8. Alastor, American rock band from Atlanta. Alastor (Portugal) - black/thrash metal Alastor is a Black Thrash Metal band that was formed in 1988 by JA (guitars/vocals) and JF (drums) Read more on