ForestClan lives in the part of the forest where most trees are found. ForestClan cats are nimble and fast. Their camp is situated in the middle of their territory, making it hard for enemies to find their camp as the thick trees protect the camp. They eat mostly mice and voles.
Leader:

Rubystar - dark ginger she-cat with amber eyes and extremely sharp claws. Understanding and kind, she does not believe that everything can be solved by fighting, even though she has the advantage of almost every cat in a battle because of her extremely sharp claws. Usually calm, but when she gets angry, she is to be feared. She has a brother named Deathstar, leader of RiverClan, whom she thought was dead in the past. (Warrior name: Rubyfur)
Deputy:

Skywhisker - light brown tom with green eyes and strong hind legs for great leaps. He may seem authoritative at times but he treasures friendship and has a soft side to him.
Head Warrior:
Medicine Cat:

Wildpelt - beautiful calico she-cat with flame-coloured markings and deep, forest green eyes. Her face is partly brown with dark, black stripes. She is caring and loving, but enjoys sitting on a tall rock staring at the moon at night. She has a vast knowledge of herbs and uses it well.
Mate: Lionstorm of FireClan
Kits: Lynxpaw, Hailpaw of FireClan, Twilightpaw, Brokenpaw
Warriors:
Sapphirestorm - blue-gray tom with glittering blue eyes and sharp claws. Troublesome and playful, loyal to the Clan. (Parents are Deathstar of RiverClan and Swiftpelt (deleted)) (Senior Warrior)
Mate: Blizzardstorm of RiverClan
Kits: Jaggedarrow, Leaffeatherof RiverClan, Dusksky
Shadowflight - shadow-gray she-cat, almost black, with dark blue eyes and really sharp claws. As troublesome as her brother, loyal to her Clan, and very playful, and can dream all day. (Parents are Deathstar of RiverClan and Swiftpelt (deleted)) (Senior Warrior)
Spottedclaw - brown tabby she-cat with a white left forepaw and dark, forest green eyes. She has a v-shaped scar on her from a battle when she was young. She is extremely loyal to her Clan. She is fierce in battle, but has a very soft heart. She has very little patience.
Duskwhisper - dark gray tom with shining ice blue eyes. He is kind and caring and would give his life for his Clan. He can sometimes have a temper but loves his sister, Leaffeather, and all others he cares for dearly. He loves to fight and romp around and will one day make a worthy warrior. (Parents are Sapphirestorm and Blizzardstorm of RiverClan.)
Apprentices: Brokenpaw - snowy white tom with shimmering blue eyes. His tail is completly black and he has a pitch black tear-drop marking under his right eye. He has a very deep bond with his mother Wildpelt and is almost always with her. He loves to explore and he has no fears. He is also very loyal and loving. (Parents are Lionstorm of FireClan and Wildpelt.) (Mentor, Sapphirestorm)Twilightpaw - black she-cat with golden marks that seem as if to break out of the blackness of her pelt. Her eyes are a blazing green color. She is kind and does whatever she can to make everyone around her happy. She doesn't like to fight and likes to hang around her mother mostly because of her loving and kind nature. (Parents are Lionstorm of FireClan and Wildpelt.) (Mentor, Shadowflight)

Aurorapaw - mostly black, short-furred calico she-cat with amber eyes. Kind, sweet and loves to play. She likes to help other cats that are old or wounded, and is loyal to her Clan. (Mentor, Wildpelt)
Queens:
Wildpelt - tortoiseshell she-cat with forest green eyes. Loves to hunt and playfight, and has a cheerful disposition.
Mate: Lionstorm of FireClan
Kits: Twilightpaw, Brokenpaw, Lynxkit, Hailkit
Elders: Iceclaw - white she-cat with blue eyes. She is respectful but can be very demanding. 
Kits:
Cats who have mentored an apprentice:
Iceclaw - Breezepaw (Breezefoot) (StarClan warrior)
Skywhisker - Thornpaw ( Thornmask) (deleted)
Thornmask (deleted) - Sapphirepaw (Sapphirestorm)
Breezefoot (StarClan warrior) - Shadowpaw (Shadowflight)
Sapphirestorm - Brokenpaw
Shadowflight - Twilightpaw
Wildpelt - Aurorapaw
Rubystar, leader:
Rubystar was born a loner, Ruby. She had two brothers, Fire and Night. Fire died when he was just born as he was too weak. Not long after, dogs living in the area chased them. Her mother was caught, and her father was killed by a monster on the Thunderpath when he ran out onto it in panic. She and Night were seperated while escaping, and found out when she became leader that Night was in fact Deathstar, leader of RiverClan.
Thrushtail, deputy in StarClan:
Thrushtail was a kittypet with the heart of the wild. She escaped from the Twoleg nest one day and fought Iceclaw when she collided into her. She proved to be strong and defeated Iceclaw easily. The previous leader, Hawkstar, invited her to join the clan and she accpeted. She and Iceclaw became good friends and when Hawkstar lost his last life, Rubystar, then Rubyfur, became leader and appointed Thrushtail as deputy of ForestClan.
Rushtail, previous medicine cat:
Rushtail was an apprentice, training to be a warrior when she heard the calls of StarClan in her sleep.
Iceclaw, elder:
Iceclaw was clan-born but she was very weak when she was just a kit. When she became a warrior, an apprentice could defeat her easily. After Thrushtail joined the clan, she trained with her everyday and gradually became stronger. She is now one of the strongest warrior in the clan, thanks to her good friend Thrushtail.
Skywhisker, deputy:
Skywhisker was born a rogue. He and his family were seperated when the rats attacked them. Skywhisker found his way into the forest and met Rubystar and joined her Clan. He embarked on a journey once to find his long-lost family but failed.
Breezefoot, warrior in StarClan:
Breezefoot was born a loner. Soon after he was born, Twolegs captured his parents and he was left with his brother and sister. His brother hated him as their parents were captured because they went back for him when they realized that he couldn't catch up with them. His sister took care of him when their brother left them. The previous medicine cat, Rushtail, heard their cries for help when they fell ill and tried to heal them. Breezefoot's sister died just after being accepted into the clan. Iceclaw was his mentor.
Spottedclaw, warrior:
When she was a kit, she was taken in by Twolegs. They treated her nicely, but she could not get used to being indoors. One day, she escaped from the Twoleg nest, and ran out into the forest. While she was wandering, a rogue attacked her and left her with the scar on her ear. A loner found her and cared for her wounds. He taught her how to defend herself and how to hunt for fresh-kill.