A man with super-hearing and the ability to turn into a cloud of toxic nerve gas. Formerly a member of The Vanguard until he left one day without explanation. At some point he was kidnapped by Castle Tech. In a Castle Tech Lab he was used as a test subject for experimental anti-metahuman weapons. After a particularly arduous test, Olney fell unconscious and turned gaseous. After several days without reforming it was clear he was dead. A failed experiment turned into a success when the company was able to take samples of the gas in the testing chamber, and discovered they could synthesize a chemically identical gas for their own use. He may be gone, but is not forgotten. The team will do anything in its power to honor and avenge his death.