In Greek mythology, Actaeus (Ancient Greek Ἀκταῖος, "coast-man"), also called Actaeon in some late notices, was the first king of Attica according to Pausanias. He ruled the land then named Acte or Actica; after his death Cecrops received the kingdom as his son-in-law. Distinct from Actaeon the hunter of Artemis, grandson of Cadmus.
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I.First king of Acte
Pausanias opens the Attic succession with Actaeus as the first to reign over what is now Attica. When he died, Cecrops took the kingdom as Actaeus' son-in-law; Cecrops' daughters Herse, Aglaurus, and Pandrosus, and the short-lived son Erysichthon, follow in that telling. The Parian Chronicle likewise has Actaeus give Aktike its name before Cecrops renamed it Cecropia.
Apollodorus makes earth-born Cecrops the first king who renamed Acte Cecropia, yet still records that Cecrops married Agraulus (Aglaurus), daughter of Actaeus — preserving the older house in genealogy even where the Bibliotheca does not count Actaeus among the kings.
II.Family and homonym care
Actaeus' daughters include Aglaurus (wife of Cecrops) and, in some late notices, Erse, Pandrosos, and a virgin Phoenice after whom Scamon of Mytilene said the Phoenician letters were named. His wife is obscure.
The atlas id actaeus-athens is this Attic king alone. He is not Actaeon (Aktaion) the hunter whom Artemis turned into a stag — a Cadmean grandson of a different generation and myth.