The Watcher was not a single person, but a group of cult worshippers who worshipped the ancient god Moloch. They believed that the spirit of Moloch jumped from one person to another. The Watcher tailed Dexter Morgan who they referred as "The Other". Dexter's Dark Passenger is a child and enemy to their god.
- Kurt Wagner
- Professor Wilkins
- Darius Starzak
- Jerry Halpern (while hypnotized)
- at least two unnamed guards
Alexander Macauley A.K.A Zander also helped the Cult of Moloch, bringing them people to sacrifice, but was not considered a member of the cult.
- Sacrificed several children before the recent kidnapping of both Astor and Cody
- Ariel Goldman, presumably killed by Kurt Wagner
- Jessica Ortega, presumably killed by Kurt Wagner
- Tammy Connor, presumably killed by Kurt Wagner
- Manny Borque, killed by Kurt Wagner
- Franky, killed by Kurt Wagner
- Kurt Wagner, killed by other member of the Cult
Mentioned on files found by Dexter, though not confirmed as deceased, they were taken by Zander and were never heard of again: