Thanos
The Mad Titan draws from Greek Titan mythology, his very name derived from Thanatos, the personification of death. His obsessive courtship of Lady Death in comic lore establishes him within classical traditions of mortality and cosmic consequence. However, as a relatively modern creation, his mythological foundation remains derivative rather than foundational, borrowing gravitas from established traditions.
Thor
Thor stands as genuine mythology incarnate. His origins in Norse religion predate recorded history, appearing in the Poetic Edda and Prose Edda as the red-bearded protector of Midgard. Thursday itself bears his name. His mythological significance encompasses fertility, storms, and the eternal struggle against chaos. He represents authentic religious tradition rather than fictional appropriation of mythological concepts.