- Acting in the Dark: Christian Kane returns as Lindsey McDonald in the last moment of the final scene of this episode, which Sarah Thompson describes as "a secret scene" that didn't appear in the original script. She says: "I heard rumors there were going to be a big reveal, but I didn't know what was going to happen. David Boreanaz was like, 'Maybe you're going to turn out to be a lizard.'" She received the scene in an envelope marked "confidential" shortly before filming, with strict orders not to reveal Kane's return.
- Completely Different Title:
- German: "Der Kelch der Qual" (The Cup of Torment)
- Hungarian: "Az örök gyötrelem kelyhe" (The Cup of Perpetual Torment)
Trivia / Angel S 05 E 08 Destiny