Remember the names: Bitsie Tuloch, Rachael Taylor and Amanda Walsh. They are the leads in “Washingtonienne,” the new comedy pilot we have high hopes for from Sarah Jessica Parker and HBO (enough with the vampires). The comedy is based on the semi-autobiographical book by Jessica Cutler about the “sexploits” of a low-level female congressional staffers. Tuloch, a Harvard grad who was terrific on the Internet show “quarterlife,” is the only familiar actress. Taylor, an Aussie, was in “Transformers.” Walsh, a Canadian, has been on “Smallville.”