D'anna Biers is a fictional female Cylon in the Battlestar Galactica television series who was portrayed on screen by Lucy Lawless. D'anna first appears as a new broadcaster on board the Battlestar Galactica but then her character disappears because she knows the identity of the final five Cylon models. Number One (Brother John Cavil ) does not want the identities to be revealed so she locked away. She is referred to as Model Three in the series of Cylons.
D'anna is finally unboxed when a team from the Battlestar Galactica break into the Hub to unbox her. In addition to unboxing D'anna, they are also able to destroy the entire Resurrection Ship network so when a Cylon dies, it dies for good.
When D'anna gets back to the Cylon fleet, she gives the Galactica an ultimatum to hand over the final models or be destroyed. It is only at this point that the final models except Ellen Tigh reveal themselves to Commander William Adama.
If you're trying to remember where you've seen her before. Lucy Lawless previous major role was that of Xena, Warrior Princess where she had long brown hair.
Copyright: Vivendi Universal