Danielle guest starred in the Charmed episode "The Fourth Sister" (which first aired in the US on November 18th, 1998) as a troubled teenager named Aviva. Aviva (Harris) befriends regular character Phoebe with the hopes of joining the Halliwell coven of witches. Aviva has been lured to the dark powers of witchcraft by Kali, a priestess who appears to her through a mirror. It turns out Kali has given Aviva powers to gain the Halliwell sisters' trust to steal the sisters' powers. Although Phoebe is originally trusting and is almost seduced by the dark powers of Kali, Prue and Piper help out to bring her back to her sense and end Kali's power over Aviva.