Watcher

A Watcher is a human male or female member of the Watchers Council, devoted to tracking and combating malevolent supernatural entities (and particularly vampires), primarily by locating individuals with the talents required to fight such beings and win. More specifically, Watchers are assigned to train and guide Slayers, girls that are part of a succession of mystically powered young women who are destined to face the forces of darkness. Upon a Slayer's demise, her powers are transferred unto a new girl, who is then assigned a new Watcher herself.

Watchers Council

 * Quentin Travers
 * Roger Wyndam-Pryce
 * Geoffrey Wyndam-Pryce
 * Archibald Lassiter
 * Edna Giles
 * Bernard Crowley
 * Sam Zabuto
 * Rupert Giles' father
 * Rupert Giles
 * Willem Bryardale
 * Wesley Wyndam-Pryce
 * Merrick
 * Robson
 * Gwendolyn Post
 * Rutherford Sirk
 * Lydia
 * Nigel
 * Phillip
 * Laura Kay Weathermill
 * Unidentified Watcher (Righteous)
 * Violet's Watcher
 * Laurent
 * Mr. Whiskers
 * Frederich Lichtermann

Slayer Organization

 * Andrew Wells
 * Rupert Giles
 * Xander Harris (de facto)

Fray

 * Melaka Fray's Watcher
 * Urkonn