Kathleen "Cupid" Nolan is Tex Nolan's daughter. In "A More Perfect Union", Tex departs the ship to search for his wife and daughter. He locates the place they were staying and finds out that his wife was killed by looters but his daughter survived. Tex reunites with his daughter and teams up with a team from the Nathan James in Memphis to stop the Immunes. He succeeds and in St. Louis introduces Doctor Scott to his daughter Kathleen while helping pass around the cure.

After her father's death at the end of Season 3, she joins the crew of the Nathan James and becomes the gunner and air rescue-man for the helicopter crew.