Hermes (/ˈhɜːrmiːz/; Greek: Ἑρμῆς) is an Olympian deity in ancient Greek religion and mythology. He is the herald of the gods and is also considered the protector of human heralds, travellers, thieves, merchants, and orators.

In ancient Greek religion & mythology, Demeter (/dɪˈmiːtər/; Attic:Δημήτηρ Dēmḗtēr [dɛːmɛ́ːtɛːr]; Doric: Δαμάτηρ Dāmā́tēr) is the Olympian goddess of the harvest and agriculture, presiding over grains and the fertility of the earth, also called Deo.

Hades (/ˈheɪdiːz/; Greek: ᾍδης, translit. Háidēs; Ἅιδης, Háidēs), in the ancient Greek religion and myth, is the god of the dead and the king of the underworld, with which his name became synonymous.