Tanny Radcliffe is a colleague of Brian Frost who fought in Takistan with the British armed forces. However, he got into disagreement with his superiors and left the British military, then joined ION, Inc.

He is part of the security team tasked with protection of the UN investigation team but is killed in a building collapse during the mission in Zargabad. His death deeply afflicts Brian Frost who is the determined to leave ION after the end of the mission.