Rob Zombie is a cartoon character. Born Robert Bartleh Cummings in 1965, the ghoulish offspring of Alice Cooper, David Bowie and Gene Simmons has parlayed his horror-movie obsessions into a career as the court jester of heavy metal. And like his idols, Zombie is no dummy. He’s a 21st-century renaissance man of the lewd and lascivious. He writes and directs slasher flicks, composes soundtracks to video games, dabbles in graphic novels — and when the mood strikes him, makes a little music. His songs are a caustic brew of groove-based metal macabre honed since his first group, White Zombie in the mid-’80s. A devilish showman with his forked tongue planted firmly in cheek, Zombie is the Freddy Krueger of rock with the soul of P.T. Barnum. He brings his fiendish bag of tricks to the National on Sunday, May 4, with Los Angeles’ Disco Death Rock. Doors open at 7 p.m. Admission is $45. thenationalva.com.