How many gods are there in Greek mythology and what roles do they play in the ancient Greek pantheon?

In Greek mythology, there are 12 major gods and goddesses known as the Olympians. They play various roles in the ancient Greek pantheon, with each deity having specific domains and responsibilities. For example, Zeus is the king of the gods and god of the sky and thunder, while Athena is the goddess of wisdom and warfare. Each deity has a unique role and influence in Greek mythology.