Araquiel (A.I.)

As Colonel James Ackerson's private A.I., Araquiel was tasked to spy on Dr. Catherine Halsey and her research.

He is only mentioned in the book, Halo: First Strike, and is effectively erased by Dr. Halsey and Kalmiya after he attempted to stop her from breaking into Ackerson's private data files during the Covenant assault on the planet Reach. His appearance is that of an elongated skull with long, demon-like horns, fire-filled eyes and jagged teeth. His voice is a low bestial growl or rumble containing a trace of far-off thunder.