Question: In the opening credits, Holly Combs is credited with "and Holly Marie Combs as 'Piper'". Why was she credited with her character's name, when none of the other three lead actresses were?
Answer: She became a producer.
Incorrect. Her billing changed in season 4 but she didn't become a producer until season 5.
Unrest at the Nursery! - S15-E47
Question: Why did Vullaby run away from the nursery? Was it because of Layla hurting her feelings?
Answer: Yes it ran away because Layla hurt its feelings.
Question: The Episode titled The Rowdyruff Boys was banned from YTV in Canada. Why?
Answer: A representative for the broadcast company refused to say why, only that it was the "content" of the episode. A search of the term 'rowdyruff' on a search engine returns a multitude of XXX related sites. Perhaps this may lean to an explanation.
Chosen answer: Her agent/manager negotiated a special billing as part of her contract. It distinguishes her from the rest of the cast, probably when she became a producer on the show.
JC Fernandez