The Sci Fi Channel’s Battlestar Galactica prequel series Caprica keeps on rolling, with more casting news. The latest addition to the show is Polly Walker, who has joined the show’s two-hour premiere as Sister Clarice Willow, whose character is described as “the gracious, eloquent and duplicitous high priestess and headmistress of the Athena Academy, a private religious school.” Yup, sounds like Ron Moore, alright.

Two casting notices for fans of sci-fi TV today (not particularly promising sci-fi, alas), both for shows from the Sci Fi Channel. The first involves the two leads of the channel’s X-Files knock-off Warehouse 13, which has cast Eddie McClintock and Joanne Kelly as the Mulder and Scully, respectively, of the show. Meanwhile, Ron Moore’s Battlestar Galactica prequel, Caprica, has also landed its leading lady in Paula Malcomson.