Who was hades helper?

Answer 1

Every soul is judged by, not only Hades (who has the last say) but his whole court of attendants which include;

Erinyes (Vengeance deities; Tisiphone, Medaira, Alekto)

Moirai (Fates; Klotho, Lakhesis, Atropos)

Keres (Death goddesses which have no individual name)

Thanatos (Death)

The five rivers of the Underworld;

Cocytus, the river god of wailing.

Styx, the river goddess of hatred.

Lethe, the river goddess of oblivion.

Acheron, the river or lake god of pain.

Pyriphlegethon, the river god of fire.

The judges of the dead;

Aeacus, the guardian of the keys of the Hades and the judge of the men of Europe.

Rhadamanthys, lord of Elysian and judge of the men of Asia.

Minos was the judge of the final vote.

Triptolemus, sometimes said the fourth judge who presided over the souls of the Initiates of the Mysteries.

To name only a few.