Firestar is a ginger tabby tom with green eyes who was the leader of ThunderClan before Bramblestar.
He did lots of stuff as leader and lived for a very long time. He was killed fighting Tigerstar in The Last Hope and joined StarClan. Before coming to ThunderClan, he was a kittypet named Rusty who never stopped wondering what went on in the forest. Bluestar, the leader of ThunderClan at that time, found him and recruited him as an apprentice named Firepaw. His warrior name was Fireheart.