Smoke is a huge, strong, gray marbled tabby tom with dark green eyes, long, hooked claws, and powerful hindlegs. He is power-hungry, and will do anything to be leader.
- Smoke is an apprentice of the Shadows Cats, and his mentor is Thunder, the leader. Being the leader's apprentice, once Thunder dies, he will become leader. He is also the second-in-command.
- Smoke is first seen shoving forward Darkpaw, a LoyalClan apprentice. He explains to Thunder that he and Arrow found her hunting in their territory, to which Thunder calmly replies, saying to put her with Heartstar, another LoyalClan prisoner.