The correct answer is - Gilgamesh.
Gilgamesh is originally a Sumerian character. The first epic in the human history was written and based around Gilgamesh's life, adventures, lessons he learned in life.
The Greeks, despite being a totally different culture and group of people still had Gilgamesh in their mythology as a character. The main reason for this was the Sumerian influence in the Middle East. The Sumerians set the basis for the other cultures to develop, so lot of elements from the Sumerians were adopted by the other people, including the Sumerian mythology. The Phoenicians were one of those people. They were the once that mastered the Mediterranean and were in constant contact with the Mediterranean civilizations, including the Greeks, they managed to spread out lot of cultural elements, including the myth about Gilgamesh.