Chamberlyn was a Human male lieutenant in the Utapau Security Forces and a member of the Veermok Resistance, a rebel group opposed to the Trade Federation shipping cartel's occupation of Utapau during the invasion of the planet in 22 BBY. Born on Utapau in 51 BBY, Chamberlyn was educated at a university, where he wrote a thesis on Jonathan Bac, the first Supreme Chancellor of the Galactic Republic. He later joined the Utapau Security Forces and lost his eye during a training incident.