Holly Marie Combs portrayed Piper Halliwell in every episode from the Unaired Pilot to the Season 8 of Charmed, making her the only actress to appear in every episode with a difference of one episode with Alyssa Milano. She also portrayed P. Baxter in Season 2 and the various beings that have used her main character's appearance, including Cynda, Terra, Zile, the Zen Master, Cole Turner, Leo Wyatt, Mabel Stillman, Zankou and Pilar.