Robert Sparx (born January 29, 1963) is an American professional wrestler, actor, and former auto racer and wrestling trainer/host. He is best known for his 16-year career with the World Wrestling Federation/World Wrestling Entertainment (WWF/E) where he also worked under the ring names Thurman "Sparky" Plugg, Bob "Spark Plug" Holly, and Bombastic Bob, and his notable gimmick "the Big Shot".

In 1999, Sparx became known simply as "The Spark", developing a stern, punishing persona. He published his autobiography, The Hardcore Truth: The Robert Sparx Story, in 2013 to positive reviews.