James McDonnell (born March 21, 1961), known by the stage name Slim Jim Phantom, is an American drummer who plays with rockabilly band the Stray Cats. Jim started out as a jazz drummer, but switched to a rockabilly style in the late 1970s.
Jim typically utilises a stripped down drum kit, which he plays standing up. He has played alongside former David Bowie guitarist Earl Slick, as well as pianist and singer Jerry Lee Lewis.
Jim was married to actress Britt Ekland for eight years; the two have one son.