Well, most gods could ALL change at will, but I'd have to say Posiden, since his grandson could turn into various animals
I think, though, that you are looking for Proteus, the shape shifting sea god who was the herder of the sea creatures and called the Old Man of the Sea. He was a prophetic god, but would only give answers if properly compelled to do so, which usually meant clinging to him as he shifted through various forms.
Proteus, a sea god in Greek mythology, had the ability to foretell the future and change his shape at will. He was known for his wisdom and prophetic powers, but he also had a reputation for being elusive and difficult to pin down due to his shape-shifting abilities.
Poseidon can change his eye color as well as shape shift.
Proteus was a sea-god who could shape-shift
No, a hexagon is a six-sided shape.
The goddess Hecate.
There is the greek god Poseidon, but not many gods in Greek Mythology can actually change forms.
Hermes
neptune still team airbourne @ !!!!!!!!!!!!!!!!!!!!!!!!!
Easy . In Greek Panas in ancient Greek pan. Its a sort name to change it :)
The Greek gods could change their hair color.
Yes; most Greek god/goddesses could and did shape-shift.
Pretty much all of the gods had the ability to shapeshift.