Amy Madison is a fictional character on the American television series Buffy the Vampire Slayer, portrayed by Elizabeth Anne Allen.

Although initially a seemingly good-natured individual, Amy gradually begins misusing her magic, eventually becoming an enemy to Willow (Alyson Hannigan) and her friends.

In the second season episode "Bewitched, Bothered and Bewildered", Xander Harris discovers that Amy inherited her mother's power.

Under the influence of her own spell, a jealous Amy invokes the goddess Hecate and temporarily turns Buffy into a rat.

"[2] Having physically transformed into Warren Mears, whom she tortured and flayed in a rage over the murder of her girlfriend Tara Maclay, Willow seeks help from the UC Sunnydale Wicca Group and discovers that Amy is a member.

In the first issue of the Season Eight comic book story "The Long Way Home," Amy works together with the US Army to locate and attack Buffy.

Together they construct a missile covered in mystical runes and candles and use it to destroy a Scottish citadel, killing seven of the many Slayers residing there.

At its conclusion, after Buffy destroys an ancient relic and effectively brings about the end of magic on Earth, the spell keeping Warren alive breaks, and Amy watches as he suddenly turns into a pile of blood and bones.

Amy also appears in the second volume of Angel & Faith, tying into Buffy the Vampire Slayer Season Ten, in issue four.

In the story, magic was recently restored to the world at the conclusion of Buffy Season Nine, while London in Angel & Faith was the site of a failed attempt by Whistler to restore magic which resulted in the mass mutation of locals in one borough, creating the ghetto known as 'Magic Town.'