Bio: Izaya, at this point known as Izaya the Inheritor, was a
warrior of New Genesis, husband of Avia, and father of the boy who would
become Scott Free. He and his wife were ambushed by Steppenwolf, his
nephew Darkseid, and the warriors of Apokolips, during which attack,
Avia was slain. Izaya led an attack on Apokolips, during which he slew
Steppenwolf (though Steppenwolf would later return). Revenge, however,
brought no solace to Izaya, and he soon after went on a sojourn into the
wilderness of New Genesis, seeking enlightenment.
It was at this time that Izaya first encountered the Source, and, taking
the name Highfather, he returned to the gods of Supertown to bring them
the Source's wisdom. Highfather engineered the Pact with Darkseid, by
which Izaya's child was sent to the orphanages of Granny Goodness on
Apokolips, while Darkseid's son Orion was sent to live on New Genesis as
Highfather's adopted son. (It was later revealed that Highfather's true
motive in this agreement was to simultaneously redeem Orion, while
refining Scott's spirit through his testing on Apokolips.)
To this day, Highfather continues to lead the gods of New Genesis, and
hopes to one day pass down leadership to his son. Relationships between
father and son are strained however, due both to the results of the
Pact, and Scott Free's general rejection of the ways of the gods in
favor of that of the humans of Earth.
Check out Highfather in Justice League.