Specter, an older IL-series Cylon, demonstrates despicable traits of (and including) thievery, dishonesty and deceptiveness. His forces managed to occupy the entire marsh-like planet of Antilla, but was constantly attacked by Megan's children -- Kyle, Miri, Ariadne, Robus and Nilz. When Starbuck was forced into a controlled crash-landing on Antilla, he was almost taken to Specter, however the family-turned-military force waylaid the Cylon force.
Specter managed to mislead Lord Baltar into believing that they had managed to capture the warrior, which he conveniently remained nameless. As attempts to get the warrior by force remained fruitless, an agreement made by Kyle managed to trade Megan's life for Starbuck's. Specter attempted to deceive Megan's children by floating a manufactured dummy while the children sent over the same in place of Starbuck. This forced Specter to continue leading Baltar upon a string.
Lucifer, Baltar's newer IL-series cogitator, despised the lower grade Cylon and attempted to undermine Specter's attempts to curry Baltar's favor. Lucifer managed to come across uncomplimentary requisition orders for additional war materiel, even though the planet was supposedly completely controlled. Specter managed to, yet again, mislead Baltar, and even get Baltar to feel for the Cylon's plight on Antilla -- they do not fare well on marsh planets for they oxidize.
After a successful and embarrassing attack by Megan's children and Starbuck, Specter informed Baltar that the garrison had come under attack and are destroying everything. Specter managed to also secure a place aboard Baltar's base star so that they can later be reassigned wherever the Imperious Leader needed such experienced hands. (The Young Lords)
Specter obviously kept the more damaging aspects of the entire situation from Baltar and the Imperious Leader.
(Allegedly) portrayed by: Murray Matheson
A specter is a type of demon from folklore that is of ghostly or evil nature, also spelled "spectre" in the British-English vernacular. Both spellings are pronounced the same, however.
This naming of the IL-series units supports the theory by Joe Beaudoin that all IL-series Cylons are somehow named after a creature or some evil figure from collective histories of Mankind, as shown in the series.