Toward the end of the episode, McCoy tells Schiff he wants to sue Elgin, the supplier of the virus. Schiff asks if they prosecute gun manufacturers when someone is shot. In the next season, McCoy does exactly that, in the episode titled "Gunshow".
Dylan Baker has portrayed three different characters throughout the series:
- Episode 2.11 His Hour Upon the Stage (1991) - Sean Hyland.
- Episode 9.4 Flight (1998) - Aaron Downing.
- Episode 14.11 Darwinian (2004) - Sanford Rems.
- Episode 15.10 Enemy (2004) - Sanford Rems.
- Episode 16.20 Kingmaker (2006) - Sanford Rems.
Jack Gilpin plays Attorney Axtell in this episode & three others. Previously, he played the role of Dr. Simon Reed in episode 5.12, Progeny (1995).
J. Smith-Cameron has played four different characters over the course of the series:
- Episode 2.13 Severance (1992) - Ms. Moskowitz.
- Episode 9.4 Flight (1998) - Paula Downing.
- Episode 14.5 Blaze (2003) - Linda Drosi.
- Episode 19.16 Take-Out (2009) - Attorney Ward.