Jim Smith (born James Carl Jobb October 8, 1954, Lubbock, Texas) is an American animator and musician. He worked on Mighty Mouse: The New Adventures with his long-time working partner John Kricfalusi. Smith later briefly worked on Tiny Toon Adventures, and then along with Kricfalusi, Bob Camp and Lynne Naylor he founded Spümcø, where he co-created The Ren & Stimpy Show and The Ripping Friends. He is also the one playing the guitar for the Ren & Stimpy theme in the intro. His performance name is Jelly-Roel, Jelly Roll.