Lydia

Lydia was a fictional character in the TV series, Buffy the Vampire Slayer, appearing in the Season 5 Episode "Checkpoint" and the Season 7 Episode, "Never Leave Me". She was portrayed by Cynthia Lamontagne.

Trivia

 * The shooting script for "Checkpoint" reveals that the Watcher's name is 'Lydia' but her name is not revealed on-screen until two years later in the episode "Never Leave Me". Although Lydia's surname was not revealed in either episode, the uncanonical 'Thesis' has her surname as Chalmers.