Translated by E. Coleridge.
Iolaus, friend of Heracles
Copreus, herald of Eurystheus
Demophon, King of Athens
Macaria, daughter of Heracles
Servant, of Hyllus, son of Heracles
Alcmena, mother of Heracles
Eurystheus; King of Argos
Chorus of Aged Athenians
Acamas, the brother of Demophon, younger sons of Heracles
Before the altar and temple of Zeus at Marathon. Iolaus, an old man, and the children of Heracles are seen on the steps of the altar.
Reference address : https://www.ellopos.net/elpenor/greek-texts/ancient-greece/euripides/heracleidae.asp