One of Dr. Helen Magnus's employees at the Sanctuary, Henry Foss is an uber-geek of the cool variety, a weapons designer and computer expert. His skill and intelligence with all things technical keep the Sanctuary at maximum security...most of the time. Ever ready with a witty remark, he smart-mouthed, sarcastic and undeniably brilliant. As with most residents of the Sanctuary, there is more to Henry than meets the eye.