Characters, groups, or places that have a mythical motif they can be named after a god, mythical hero, or mythical creature. Be linked to them in some fashion. Or have their story mimic the myth.

1. Nacht Faust (Black Clover) - Nacht is the current head of and sole member of the Faust Family. Faust is a scholar who made a contract with Mephistopheles to exchange his soul for unlimited knowledge and worldly pleasure. Nacht without any purpose in his life embraced Devil Magic as he had a gift for it. Nacht's summoning of Lucifugus leads to the death of his beloved, good, and righteous brother Morgen, tying into how Mephistopheles kills the good humanity within Faust in the myth. Nacht and Morgen being polar opposites references the myth's theme of polarity. And Nacht's character arc of atonement goes with the myth's aesop that humanity is capable of sin but able to be forgiven through repenting. Also just on the surface Nacht as a Devil Host has access to Devil Union giving him devil like features.

2. Kenpachi Zaraki (Bleach) - Zaraki has an Oni motif. From his his violent personality and the appearance of his Bankai brings to mind the appearance of one. He also has a connection with the Gashadokuro. His battle aura appears as a giant skull when fighting Ichigo, and he spends most of the series wearing bells in his hair that ring when he fights giving away his location in any fight, much like the original myth of victims of the Gashadokuro hearing a ringing sound before their imminent death.

3. Zeno Zoldyck (Hunter X Hunter) - Zeno has an association with dragons. This manifests in his Dragon based Nen Abilities.

4. Kurama (Yu Yu Hakusho) - Kurama has a connection to the Kitsune as the guy actually was a kitsune in his former life before being reincarnated into a human. Kurama is quiet, secretive, cunning, and wise, with a feminine nature and appearance.

5. Luz Noceda (The Owl House) - While you could tie Luz's love of witches or her demon friends into in universe she is associated with The Titans. Her good friend/little brother King is one. But also the Boiling Isles Titan is fond of Luz and she is even granted a Half-Human Half-Titan form temporarily to defeat Belos.

Mythical Motifs