Big the Cat is a character that appears in the Sonic the Hedgehog series. He is a large, purple, anthropomorphic cat who lives deep within Mystic Ruins. Though imposing of stature, Big is a gentle and easy-going, though somewhat dim-witted person with a heart of gold. He also possesses incredible strength and toughness that makes him one of Sonic's strongest allies. He is also an expert fisherman. Big spends most of his time fishing in tranquility with his best friend, Froggy. Not one for going on grand adventures, Big prefers his peaceful and quiet lifestyle in the jungle. However, should his friends be in danger or in need of his aid, Big will not hesitate to leave his home to help them out and protect them in any way he can.