The best ThunderClan warrior ever would probably be Lionblaze. He is part of the prophecy "There will be three, kin of your kin, who hold the power of stars in their paws." Lionblaze's grandfather, Tigerstar, is considered by many to be the greatest warrior to live. I know Tigerstar was leader of ShadowClan, but he was in ThunderClan for Into the Wild, Fire and Ice, and Forest of Secrets.
Leafpool became a normal warrior in ThunderClan.
Thunderclan
Lionpaw is not a ThunderClan warrior because he is a paw or apprentice
Whitestorm's mother is Snowfur, and his father is Thistleclaw. Snowfur was a warrior of ThunderClan and Thistleclaw was a warrior of ThunderClan. They are also the parents of Bluefur, who later becomes Bluestar, the leader of ThunderClan.
they haven't
Cinderpelt
Brightheart is from ThunderClan in the Warriors series by Erin Hunter. She is a warrior in ThunderClan and is known for her bright, intelligent personality despite her physical scars.
No, Crookedpaw was not trained by a Dark Forest warrior. He was mentored by Mapleshade, who was a former warrior of ThunderClan. Mapleshade was not a Dark Forest warrior but sought revenge on ThunderClan for her own reasons.
He said that because he was Stonefur's father and Bluestar was his mother. So he believed no ThunderClan warrior should harm Stonefur as he was their leaders kit. As well as Mistyfoot. Stonefur was half THunderclan. He believed that since the were kin, He shouldn't be harmed.
Dapplepelt is not from ThunderClan. She is a RiverClan warrior in the Warriors book series by Erin Hunter.
She wanted him to be a warrior (fire &ice).
Dustpelt's mother was Robinwing and his father was Fuzzypelt. Robinwing was a ThunderClan warrior known for her loyalty and courage, while Fuzzypelt was also a ThunderClan warrior who was known for his strength and determination. Dustpelt inherited traits from both of his parents, becoming a skilled and dedicated warrior in his own right within ThunderClan.