Bramblestar[]
Bramblestar was the son of Tigerstar. In his dreams, Tigerstar summoned him and Hawkfrost, his half-brother, to the Thunderclan camp, and trained him, hoping to make Bramblestar loyal to him over everyone else. Bramblestar almost killed Firestar, like Tigerstar hoped, but instead at the last moment he turned on his father and half-brother, and saved Firestar. He killed Hawkfrost, whose blood spilled into the lake, completing the prophecy; Blood will spill blood, and the lake will run red.