Seraphiel

Seraphiel or 'Spyrth' as he prefers, is a main character for the story Switch Board. While posing as a fallen he meets the other protagonist, Hailey, and the two quickly become partners and friends. When sent on a mission to Earth by the archangels, including his father Zadkiel, to help the apocalypse as indiscreetly as he could. His counterpart is Serae.

Biography
Spyrth, like some angels, was a human before he died. However, Lucifer himself killed Spyrth, and for reasons unknown, dragged him to Hell for a selective time, before he was rescued by angels and thus became one himself.