Onestar

Onestar is a dusty brown tom.

Fire and Ice

 * Onewhisker was one of the cats who befriended Fireheart during WindClan's return to their territory after they were driven out by Brokenstar, the leader of ShadowClan, and his warriors. He later was the cat who came to ThunderClan for help when they WindClan was being attacked by ShadowClan and RiverClan.

Forest of Secrets

 * Onewhisker sees Fireheart at a Gathering, and thanks him again for bringing WindClan back.

A Dangerous Path

 * The ThunderClan leader, Bluestar, is obsessed with the idea that WindClan, not a dog, are stealing prey. Bluestar is going to launch an attack on WindClan, and Fireheart wants to stop it. He finds Onewhisker's apprentice, Gorsepaw, and manages to get him away from Mudclaw, the aggressive WindClan warrior. Gorsepaw is asked by Fireheart to bring Onewhisker to Fireheart, and Fireheart asks Onewhisker to take him to Tallstar, the WindClan leader.

Midnight

 * He tried to climb down the gorge in WindClan territory to get to the river, but he fell; he was uninjured. He chased a vole across the ThunderClan border, and was caught by a patrol consisting of Brambleclaw, Dustpelt, and Squirrelpaw.

Dawn

 * He is seen mainly along side his weaken leader, Tallstar, helping him make the journey to their new home.

Starlight

 * He argues against Mudclaw's rights for speaking for WindClan. Right before Tallstar's death, the WindClan leader named Onewhisker his deputy without the proper ceremony (an event that later caused much contention over Onewhisker's right to hold the position), for fear that his current deputy, Mudclaw, would send the Clan into unnecessary wars, and in the hopes that Onewhisker would maintain the friendship WindClan had shared with ThunderClan. Mudclaw led a rebellion along with RiverClan warriors against Onestar in the hopes that he would kill him and take over WindClan. He failed when StarClan made a lightning bolt strike a tree, thus knocking it over and killing Mudclaw, while simultaneously making an area to hold Gatherings.

Twilight

 * During this book, Onestar shows an unusual display of hostility towards ThunderClan, with whom they were previously allies. Onestar defied any notion that his Clan was weak and needed help. However, he led the charge to help ThunderClan when Midnight brought the news that badgers were attacking the ThunderClan camp.

Dark River

 * Onestar prepares his Clan for a fight against RiverClan because he thinks they stole WindClan's kits. Later, though, he discovers that the kits had wandered off, seemingly to the Lake's shore, but they had really been trapped in the tunnels Heatherpaw and Lionpaw had once met in.

Outcast

 * Onestar appears briefly when Squirrelflight and Hollypaw travel to ask Crowfeather to travel to the mountains and help the Tribe of Rushing Water. Onestar had been on a patrol when they arrived, and allowed Crowfeather to go. He also insisted that Breezepaw accompany them on the trip, as he is Crowfeather's son.