|The subject of this article is non-canonical.
While created as part of licensed material, it has not been confirmed as part of the "real" Buffyverse continuity.
Micaela Tomasi was the adopted daughter of Il Maestro, the leader of the Sons of Entropy, and served as a double agent within the Watchers Council for the Sons. Eventually she turned against her father and assisted in his defeat by the Scooby Gang, after which she was allowed to retain her position as a Watcher.
Some time later, Micaela was the one to personally inform Rupert Giles of the truth behind the death of his mentor, Archibald Lassiter, and assisted him in locating and destroying the artifact responsible, against the wishes of the Council leadership.