Joss Whedon noted in the commentary for this episode that he felt horrible for giving Eric Balfour so many lines with "s" in them, which he had to recite while in "Vamp-face". He had such a difficult time getting the lines out around the prosthetics that new ones were designed for vampire characters required to speak frequently; the older style ones were given to vampire lackeys with few or no lines in future episodes.
The scene where Buffy decapitates a vampire with drum cymbals was cut by the BBC when the episode was shown in England.
Sixteen-year-old Mercedes McNab and nineteen-year-old Sarah Michelle Gellar were the only two cast members to be actual teenagers at the time this episode was filmed in 1996.
Although it is never revealed in the series, the Master's real name as listed in the script of this episode is Heinrich Joseph Nest
In the commentary, Joss Whedon commented on Buffy flipping onto the Bronze stage, noting that she never did that again as she could've just walked or ran. Buffy the Vampire Slayer (1992), on the other hand, featured Buffy flipping towards small distances numerous times.