Trivia / Charmed S4E20 Long Live The Queen

• Completely Different Title: French: "Échec au roi" (Check (chess condition))
• Descended Creator: Krista Vernoff, writer of this episode, appears as the hologram of Alison Whitt.
• Wag the Director: According to Alyssa Milano, the episode was supposed to end with a dialogue-heavy conversation between the three sisters. She felt that Phoebe would be too heartbroken at Cole's death to talk in that moment, so the scene of Piper and Paige lying down next to her on the bed to comfort her without words was created instead.