This episode is the 2nd highest rated of the entire series.
Matt Damon guest stars on the episode to promote his then upcoming movie at the time, The Bourne Identity (2002).
Matt Damon, the actor, was referenced by Jack twice in season two. In episode "To Serve and Disinfect" (S.2 E. 6) and "Terms of Employment" (S. 2 E. 8)
The episode's title references the musical "A Chorus Line"
Will asks Karen if she is going to shed her human form and use his body as her next host. Eric McCormack later plays an FBI agent whose body is used as a host by a time traveler from a post-apocalyptic future in Netflix series Travelers.