When asked how he's doing as he's hacking into the Chinese general's safe, Marshall responds that he's "5 by 5". This is a very recognizable line to fans of Buffy the Vampire Slayer (1997) and its spin-off, Angel (1999), as it is the trademark saying of the character Faith. Episode writer and director Jeffrey Bell wrote, directed, and/or co-produced 61 episodes of 'Angel', and even appeared as an extra in the first episode of its final season.
Although Mía Maestro was a series regular in Season 4, this episode marks her first appearance in Season 5 since being relegated to a guest appearance. (A fleeting guest appearance at that, not even lasting two minutes.)
Mia Maestro (Nadia) appears briefly in this episode at the end, when Sloane goes to visit her in the hospital. She is credited as a Special Guest Star.