Jayfeather

Jayfeather is one of the current ThunderClan medicine cats and one of the protagonists of the arcs, Power of Three and Omen of Stars. He used to have the power to read emotions and see the past.

Jaykit was born to Leafpool of ThunderClan and Crowfeather of WindClan in a forest in ThunderClan territory. His littermates are Lionkit and Hollykit. He is named after his jay-blue eyes, noted to be blind by Leafpool.

After the kits are well enough to travel, Leafpool and Squirrelflight, who was with her, take the kits back to ThunderClan and pretend that they are Squirrelflight's kits, because Leafpool broke not only the medicine cat but the warrior code when she fell in love with Crowfeather. Brambleclaw is overjoyed to be a father, and the kits know nothing of their true parentage.

Jaypaw, Hollypaw, and Lionpaw are apprenticed to Brightheart, Leafpool and Ashfur respectively. However, Hollypaw soon realizes she doesn't have the stomach for medicine cat duties and gets Brackenfur as a warrior mentor, and after discovering his power and receiving a message from Spottedleaf, Jaypaw reluctantly becomes a medicine cat apprentice. He realizes by reading Firestar's mind that the leader received a prophecy: "There will be three, kin of your kin, with the power of the stars in their paws." He instantly concludes that the "three" must be him, Hollypaw, and Lionpaw.

During his apprenticeship, Jaypaw (soon Jayfeather) collaborates with the newly named Lionblaze and Hollyleaf to discover more about his and Lionpaw's powers (Lionpaw's being invincibility in battle), and, after an incident involving Ashfur and a flaming tree, who their true parents are. He eventually uncovers that their parents are Leafpool and Crowfeather, and after revealing it at a Gathering, Hollyleaf runs into the tunnels. Jayfeather and Lionblaze believe her to be dead.

The brothers later realize that the prophecy was predicting the rise of the Dark Forest and that Hollyleaf was not one of the three. Instead, the third cat is Dovepaw, the daughter of Birchfall and Whitewing, and gifted with extreme sight and hearing.

Jayfeather and Lionblaze have to work with Dovepaw, soon Dovewing, and her sister Ivypaw to help discover more about the Dark Forest's plan and find the fourth cat in the prophecy, told about to them by StarClan. The fourth cat is revealed to be Firestar, who kills Tigerstar's ghost in the battle but dies soon after.

Jayfeather goes on to mentor the newly named Bramblestar and Squirrelflight's actual son, named Alderpaw. Like Jayfeather, Alderpaw started out with a warrior mentor (Molewhisker), but soon realized his passion for healing and became Jayfeather's apprentice. Jayfeather grew close to Alderpaw, named Alderheart after helping with the ShadowClan yellowcough epidemic.

Being one of the so-called "codebreakers," Jayfeather was forced to swear an oath of loyalty to the warrior code after an impostor took over Bramblestar's body.