Season 2, Episode 6 | Aired: 27 October 1997 | Written by: Carl Ellsworth | Directed by: Bruce Seth Green
One of the series’ best high-concept episodes, and the introduction of Ethan Rayne — chaos mage, old acquaintance of Giles, and recurring figure of anarchic disruption. Everyone becomes their Halloween costume. The results range from funny to genuinely alarming.
What Happens
Ethan Rayne opens a costume shop in Sunnydale and casts a spell through his merchandise: anyone wearing one of his costumes transforms into whatever they’ve dressed as. Buffy, having chosen an eighteenth-century noblewoman’s dress to impress Angel, becomes a helpless period lady with no memory of being the Slayer. Xander becomes a soldier — actually useful for once, and the episode notes the irony without belaboring it. Willow becomes her ghost costume, which renders her incorporeal.
Giles, recognising Ethan’s handiwork, tracks him down and beats the location of the chaos shrine out of him with an efficiency that shocks the audience. This is not the Giles anyone thought they knew. The shrine is destroyed, costumes revert, and Ethan escapes — he’ll be back.
Key Moments
Giles’s violence against Ethan. Anthony Head plays it without warning or ramp-up — the switch is sudden and complete, and it reveals layers of Giles’s history that the show will explore properly in The Dark Age. It’s the most important moment in the episode for everything that follows.
Willow as a ghost, wearing the ghost costume over a ghost-appropriate outfit, discovers that the chaos has liberated her from some of her habitual shyness — she walks through the chaos in the fun revealing outfit, helping because she can.
Monster / Villain
Ethan Rayne (Robin Sachs) — chaos worshipper, old associate of Giles, one of the show’s most effective recurring human antagonists. His relationship with Giles implies a shared history the show will slowly excavate.
Notable Quote
“The mask becomes real. That’s the point.” — Ethan, about the nature of chaos and identity. Applies to the episode and to the show’s larger themes about performance and selfhood.
Where It Fits
Halloween is the show doing high-concept with real confidence — the premise is playful but the episode uses it to reveal character, specifically Giles’s, in ways that matter for the rest of the season. Ethan Rayne is also one of those characters the show generates seemingly effortlessly: fully formed in a single appearance, interesting enough to keep returning to.