Blackstar

Blackstar is Russetfur's kithood friend. He is brother to Flintfang and Fernshade, and mentor to Tallpaw and Dawnpaw, who became Tallpoppy and Dawncloud. He has a close bond with Russetfur.

Blackstar, who was Blackkit, met Red (Russetfur) when she first came to the nursery with her mother Dawn and her siblings. He often plays with Red, and she develops a small crush on him. On the night before they were going to be apprentices, Dawn tells them about their apprenticeship.

Red, who was renamed Russetpaw, got Fernshade, Blackpaw's older sister as a mentor. Some time later, Russetpaw overheard her mother talking to Scorchwind about leaving ShadowClan for her old rogue group. Blackpaw also overhears this, telling Russetpaw not to worry, and soon Russetpaw's mentor Fernshade moved into the nursery as she was expecting kits. In the meantime, Featherstorm becomes her mentor instead. Blackpaw and Russetpaw continue training afterwards.

Eventually Russetpaw decides to stay in ShadowClan while her siblings decide to leave. Blackpaw is happy by her decision and soon, they were made warriors earning the names Blackfoot and Russetfur. Then Blackfoot recieves an apprentice, Tallpaw.

When Raggedstar gets killed and Brokentail, now Brokenstar, becomes leader, he appoints Blackfoot as his new deputy. Russetfur is happy about him, and Tallpaw recieves her warrior name, Tallpoppy. Soon afterwards Blackfoot becomes mates with Tallpoppy, making Russetfur heartbroken.

A few moons later ThunderClan drove Brokenstar out, and Blackfoot, Stumpytail and Tangleburr followed him, temporarily becoming rogues. When Blackfoot returned and asks whats going on, she snaps at him, telling him that she is mates with Ratscar and bore his kits, causing Blackfoot to be shocked.

When greencough hits the ShadowClan camp, it claimed the lives of Flameleaf, Slashclaw, Lionnose and Ratscar. Soon after that, StarClan sends a sign that they chose Tigerclaw to be ShadowClan's new leader after Brokenstar and Nightstar. Tigerclaw and Runningnose journey to the Highstones, leaving Blackfoot in charge of ShadowClan. Again, when Tigerclaw, now called Tigerstar headed into Twolegplace with a cat called Boulder.

Blackfoot starts to fall in love with Russetfur, then confesses his feelings for her. At first Russetfur is shocked and speechless, but then tells him how she feels for him, too. They spend time with each other and became mates. Russetfur also became pregnant with his kits.

A few days later, Tigerstar says that they were moving into RiverClan. Blackfoot and one of Tigerstar's allies, Darkstripe, murdered Stonefur, the RiverClan deputy. Tigerstar was killed by Scourge, the vicious leader of BloodClan. Then there was a battle with BloodClan and LionClan,consisted ThunderClan, ShadowClan, WindClan and RiverClan.

After the battle, Blackfoot becomes leader and chooses Russetfur as deputy. Since she is expecting kits, he appoints Cedarheart as temporary deputy instead. A few moons later, Russetfur gives birth to Hollykit, Pinekit and Sparrowkit, Breezekit and Snakekit. They had two more kits, Ivykit and Crowkit and Smokekit. Hollykit became Hollyfrost, Pinekit became Pineheart, Breezekit became Breezeheart and Ivykit, Crowkit and Smokekit became Ivyclaw, Crowflight and Smokepelt.

In their new territory, ShadowClan had a fight with ThunderClan. He was devastated that Russetfur died getting killed by Lionblaze. When he lost his final life during The Great Storm, Russetfur guides him to StarClan, where they become mates again. They are seen also welcoming Ivyclaw and Pineheart to StarClan.