What to watch when you’re all done trick-or-treating? Depends, says Daniel Roebuck, an aficionado of Hollywood horror. “You can go classic, with ‘Bride of Frankenstein’ or ‘Abbott and Costello Meet Frankenstein’,” he says. “Or you could go with the original ‘Nightmare on Elm Street’ or the remake of ‘Dawn of the Dead,’ which is really scary.” Roebuck knows something about scary, having directed the documentary, “Halloween: The Happy Haunting of America,” and acted in several Rob Zombie films, including the upcoming “Lords of Salem.” (You might also know him from the Halloween episode of “The Wizards of Waverly Place” and webisodes of “Walking Dead.”) On Nov. 10 and 11, Roebuck will be in town doing a workshop with Boston Casting called “The Audition Is the Job.” “I was enamored with monster and horror movies as a kid and that absolutely was something that drew me to Hollywood,” he says. “But destiny is only a doorway. You still have to open it and walk through it.” Roebuck has been buddies with Rob Zombie — whom he likes to call “Mr. Zombie” — since they met several years ago at a screening of an Elvira movie. In “Lords of Salem,” which was partially shot in Salem and will be released in April, Roebuck says he plays two parts, one of which is a “crazy killer.” We can’t wait.