Conan O'Brien's last Tonight Show is tonight, and the exit of Conan from NBC's late night line-up means fans will soon be without some of the great characters his shows have created.
From the early days of Late Night with Conan O'Brien to the present, Conan and his writing staff have come up with tons of hilarious characters. Some are foul-mouthed puppets, others are real people, and others are completely random. But whether you prefer a self-gratifying ursine, a Satanic pooch or a gastro-intestinally-challenged frog, Conan offered something for everyone.
These are our 15 favorite Conan O'Brien characters of all-time.
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