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.
The Scooby Gang is formed in this episode.
The Master's line "You're all weak" is a reference to Mark Metcalf's famous line in National Lampoon's Animal House (1978).