Marty Robbins CW singer, NASCAR driver owner
Paul Newman actor, serious SCCA racer
James Garner actor, serious racer, SCCA, Off road, F1, CanAm
serious team owner in several series
Steve McQueen actor serious MC & serious Auto racer
James Dean, road racing
Paul Walker dabbled
Patrick Dempsy team Porsche driver & owner, real competitor
Kenny Stabler Raiders QB racer, boat & cars
Tom Cruise actor dabbled in some racing
Alonzo Little Guy from Fresh Prince actor (can't think of his name) sports car racing
all dabbled in a few types of racing, some even Drag Racing too