Cloudtail is a heavy, snowy-white tom with blue eyes. He has fluffy, thick, and long fur. Cloudtail is a ThunderClan elder under Bramblestar's, the impostor's, Squirrelflight's, Lionblaze's, and Graystripe's leaderships in the lake territories. He previously served as a warrior under Bluestar, Firestar, and Bramblestar in the forest and lake territories. He was born to Oliver and Princess, the latter a kittypet, alongside Zack, Taylor, Nami, and Livy, and his mother gave him to Fireheart to be raised in ThunderClan to become a warrior. He was named Cloudkit, and fostered by Brindleface alongside Ferncloud and Ashfur. He later was apprenticed to Fireheart as Cloudpaw and snuck to the Twolegplace before being captured by Twolegs. He later was rescued by Fireheart, Ravenpaw, and Sandstorm. Due to him not believing in StarClan, Bluestar made him into a warrior as Cloudtail, and he became close with Lostface after she was mauled by dogs. Cloudtail helped see her beautiful spirit and unofficially mentored her before she was renamed Brightheart. The two later became mates and had Whitekit and Cloudtail became a mentor to Rainwhisker. Cloudtail participated in the Great Journey and mentored Cinderheart, Toadstep, and Hollytuft after arriving at the lake. He and Brightheart had a second litter, Dewkit, Snowkit, and Amberkit, before the Great Battle. Cloudtail later retired to the elders' den alongside Brackenfur and Brightheart.