Jim Sullivan was the kind of California character who seemed to have stepped straight out of a Pynchon or DeLillo novel â a 6-foot-2 singer and songwriter known as Sully with a magnetic personality and a handlebar mustache. His dramatic psych-folk songs were spacious, cinematic and edged with mystic, lonesome brooding. His social circle included actors and Hollywood hangers-on, and heâd had brushes with fame, including an uncredited part in âEasy Riderâ with his friend Dennis Hopper.