S4·E8 Whatchoo Stalkin' About, Willis?

The cast is trying to rehearse their Halloween episode when D.L. doesn't show up for his appearance. The cast argues about D.L. not showing up, and when the star does decide to make an appearance, he puts everyone else down and fires the director. The lights go out and there's a deep threatening voice. The cast investigates and are captured by a robed figure one by one until D.L. is the only one left. D.L. decides he'll just have his own show, starring, written by, and directed by him.However, when he finds the rest of his cast tied up and gagged in his dressing room, D.L. is relieved. He begins untying everyone but is interrupted by an attack by the robed figure. He fights off the mysterious stalker and manages to unrobe him, revealing....Gary Coleman.