Sister Clarice Willow is an Athenian High Priestess and the headmistress of the Athena Academy on Caprica, a private religious school. She achieved a high position in the clergy despite having grown up in the slums of Sagittaron.

Despite being a High Priestess of the polytheistic religion of the Twelve Colonies, she is in fact a closet monotheist involved with the Soldiers of One. A ring worn by Clarice and kissed by Zoe bears a striking resemblance to the Eye of Jupiter, and as such may hold significance in the mythology of BSG. [1] [2] She shares some of her own illegal beliefs with a few of her brightest students, including Zoe Graystone, Ben Stark and Lacy Rand, which results in Stark's fanatical devotion and his suicide bombing, in which Graystone is also killed (Caprica).