Italians and Greeks weren’t considered white until pretty recently hence “Olive Skinned”. Being Jewish, that is what we turn into with Sun.

Gerard Butler played a Spartan. Greeks are as ethnically close to Ancient Egyptians as you can get unless Egypt stops oppressing its Coptic population. Modern Egyptians are Arab colonists and that would be as appropriate as Johnny Depp in Lone Ranger.

Ancient Greeks were Mediterranean. Italian and Greek actors would be closest (unless you could get Coptic actors). Modern Egyptians are Arabic colonists, and would be like casting Susan Johnson from Idaho as Pocahontas.