Whiteclaw was a RiverClan warrior under Crookedstar's leadership in the forest territories. Whiteclaw and RiverClan challenged WindClan's return in a battle. Whiteclaw tumbled over a ledge while fighting Graystripe, and Leopardstar retained her hostility toward the ThunderClan warrior for many moons.
In The Prophecies Begin arc
- Whiteclaw participates in a border fight that aroused when RiverClan catches a patrol consisting of ThunderClan, who are being escorted home by WindClan cats, heading through RiverClan territory; the fight occurs threateningly close to the gorge's edge. When Graystripe and Whiteclaw are fighting along the edge, Whiteclaw slips over the side, grabbing onto the ledge. Graystripe tries to help him by trying to grab his paw, but he can't get a good grip and Whiteclaw falls to his death. Leopardfur, the RiverClan deputy, sees and is quite distraught at his death. Leopardfur accuses him for killing Whiteclaw, though he tried to help. She threatens that the fight has gone beyond a border skirmish and tells the ThunderClan cats that her Clan will seek vengeance. His death had been prophesied by WindClan's medicine cat, Barkface, earlier in the book.
- StarClan had given him a sign through red clouds at Barley's barn, which he interpreted as "This day shall bring an unnecessary death". When Leopardfur saw what had happened, she called the battle to an end, and said that Whiteclaw's death would be avenged, with hostility deeply embedded in her tone.
- At a Gathering, it is noted that ever since ThunderClan and RiverClan fought at the gorge, and Whiteclaw fell to his death, Fireheart feels Leopardfur's unforgiving hostility is as sharp as thorns. After getting information about Graystripe's status, Fireheart informs Mousefur that Graystripe was not Leopardfur's favorite RiverClan cat, not since Whiteclaw's death in the gorge.
- Fireheart speaks with Graystripe after he has joined RiverClan, asking whether he will be the mentor of one of his kits. Graystripe replies that, because this is Leopardstar's decision, he probably will not be allowed. He believes that she will never forgive him for Whiteclaw's death.
- Fire and Ice † (First appearance)
- Rising Storm (Mentioned only)
- A Dangerous Path (Mentioned only)
- Secrets of the Clans (Mentioned only; retconned)
- Vicky imagines him as dark brown with one white paw.
The following information is from sources considered non-canon or retconned.
- In Secrets of the Clans, Whiteclaw is revealed to have been mentored by Leopardstar.
- In Su Susann's "Missing Kits" on Vicky's Facebook, Whiteclaw was described as a dark brown tom with one white paw and orange eyes. His parents were Loudbelly and Dawnbright, and his younger siblings were Voletooth, Stonestream, and Splashpaw, a white she-cat with ginger tabby patches, blue eyes, and a distinctive patch that made the right side of her face white and the left side ginger. Whitepaw was apprenticed to Leopardfur. He and Leopardfur never became mates, but she greatly mourned his death because she was proud of him.
- (Indirect mention only)
- (Indirect mention only)