 She gained the lead role in the pilot "At Your Service", and a guest spot in the first episode of "L.A. Law".She then went on to appear as a series regular towards the end of "Hill Street Blues" run, before going on to play a recurring role in "China Beach"; she still maintains a friendship with "China Beach" co-star Robert Picardo.Gallagher's role of Catherine Black in "Millennium" had been written by creator Chris Carter with her in mind specifically, as he had been impressed with her work as Jeannie Sanders on "The Larry Sanders Show".