When this episode originally aired on HBO Fairuza Balk played Agent Deborah Ciccerone / Danielle Ciccolella. According to Balk, as a fan of the show, she wanted to appear on one episode only and at the time the character of Agent Deborah Ciccerone / Danielle Ciccolella was not intended to be a recurring role. However, the writers later decided to make Agent Deborah Ciccerone / Danielle Ciccolella a recurring roll and recast the part to Lola Glaudini. They re-shot the scenes from this episode with Glaudini replacing Balk.
Final episode to feature the Twin Towers in the intro. From Season 4 on, the intro has the buildings edited out and replaced with more industrial sites when crediting Lorraine Bracco. They were edited out due to the 9/11 that caused their destruction.