The White Bull
The story is based on the Greek mythological tale of Europa and the bull, where the white bull is the king of the Greek gods, Zeus, in disguise. Zeus, the sky and thunder god of the Olympic pantheon, often wore a disguise when romantically pursuing mortal women, so as to avoid the eye of his wife and sister, Hera.
Athena (Marvel Comics)
Athena is the daughter of Zeus and Metis, having emerged fully formed from her father's brow after Zeus consumed Metis in hopes of avoiding a male child who would succeed him, as he had his father. She took the place of the goddess of wisdom, war, and heroic endeavor in the Olympian pantheon. Her grey owl companion is named Pallas, a reference to her own name.