Sniffer is one of the animal residence living in Kimba (Leo)'s Jungle. He is most notable for, as the name suggests, his sense of smell.
Kimba the White Lion (Jungle Emperor)[]
In Episode 7: "Battle at Dead River" he appears and tries twice to track the proper scent of the culprit. Both times however Bucky (Tommy) figures it out before he could, making his involvement fairly useless.
He makes a more prominent appearance in Episode 29: "The Nightmare Narcissus", as he was the animal most affected by the Nightmare Narcissus's pollen, and as such made him the most aggressive. He joins Kimba throughout the ordeal to track down the plant, and the first to try and save Kimba when he gets caught the second time.