• Thunderstar: Strong, courageous, determined; his deputies (as far as we know in the series) were Lightning Tail and Owl Eyes, it is currently unknown whether he had any apprentices
• Owlstar: There's not much known about Owl Eyes; he was the second leader of Thunderclan and adopted son of Gray Wing,His parents were Tom and Turtle Tail
• Sunstar: Ahhh, the leader before Bluestar; Sunstar was not only one of Bluestar's mentors but also her leader. Not only was this sun colored tom leader but, also the brother of Featherwhisker, Thunderclan's medicine cat. Sunstar became Pinestar's deputy after Mumblefoot retired to the elder's den; his deputies were Tawnyspots and Bluefur(star)
• Bluestar: This even-tempered leader was loved and respected throughout her clan. Every cat respected her and followed her orders; her apprentices were Frostfur, Runningwind, and Firestar; her deputies include Redtail, Lionheart, Tigerclaw and Fireheart(star); she gave up her kits to Riverclan to be with their father, Oakheart, while Bluestar was still a warrior in order to become deputy instead of Thistleclaw
• Firestsar: "Fire alone can save the Clan." This curious kittypet, now leader, 

RiverClan