Coulier has done extensive voice work for shows including "Scooby and Scrappy-Doo", "The Real Ghostbusters," "Slimer! and the Real Ghostbusters" (taking over the character of Peter Venkman after Lorenzo Music's departure from the role), "Extreme Ghostbusters", "Muppet Babies "after Howie Mandel left (Baby Animal, Baby Bunsen, Bean Bunny, and Uncle Statler and Waldorf, and a preteen Janice for one episode), "The Jetsons", "Rude Dog and the Dweebs", and "Detention". From 1984 to 1985, he was also the host of a comedy series on Nickelodeon known as "Out of Control".