Veteran William Morris television agent Bruce Brown has left to form his own independent agency, taking with him about a dozen WMA clients.Liaison with ABC Brown, a vice president in the television packaging and literary department, was the principal liaison between the Alphabet Network and William Morris. He had been at WMA since 1974. Brown said forming his own firm will allow more personal involvement with his clients, focusing on writers, producers, directors and selected literary properties. Start-up roster The client roster he takes with him includes writer-producers Carmen Finestra (co-creator and executive producer on ABC’s “Home Improvement”), Cindy Elias and Ellen Sandler, Joe Fisch, Lindsay Harrison, Brad Kern and John Wirth as well as Chris Knopf, Michael Norell and Alan Uger. Since his exit he’s added several new clients, among them Patrick Mulcahey, Paul Lieberstein and the team of Joe Glennon and Linda Guss.