Grand Unifying Guesses/Dollhouse

The following characters are secretly Actives.

 * Mario
 * River Tam
 * Faith Lehane
 * Fred Burkle / Illyria
 * Chuck Bartowski
 * The Middleman
 * Captain Jack Harkness. He is missing two years of his life, if you remember.
 * Watcher.
 * Roger Smith
 * Dutch
 * The Nostalgia Critic (Alternatively, he could be a handler. After all, he remembers it so you don't have to...)