Tricia Helfer, of Battlestar Galactica fame, will be taking over the role
of Kerrigan in StarCraft II
. Kerrigan's the major villain of the game as well as the novels so Blizzard got a nice actress to come in and voice the female Zerg Queen of the Blades. Kerrigan was previously voiced by Glynnis Talken Campbell, who has lent her talents in many other Blizzard games as well.