Rebecca's great-uncle and former Alcatraz prison guard. He was approached by Hauser to join the task force sixteen years ago, but rejected the offer.

A San Francisco Police Department homicide detective with family ties to Alcatraz. She was raised by her great-uncle – a former Alcatraz guard and, later, cop.

The deputy warden of Alcatraz, whose cynical views of the inmates often put him at odds with Edwin James.