Sunheart is a dappled red, yellow and orange tom with dark green eyes. He is currently in MoonClan. He was born to two unknown cats - all that is known is that he is half MoonClan, half FlameClan, like his sister, Moonfang. He went to FlameClan with his father. He was made deputy soon after by his mentor and leader, Kindlestar. After his father died, he left FlameClan and was accepted into MoonClan. He quickly fell in love with Candytail and she later had his kits.