Kistner is a survivor of the 'waves' and a recruit in Camp Haven. Kistner is described as being a tall thin kid. He is an orderly at Camp Haven and a friend of Ben Parish.

The 5th Wave

He appears when Vosch orders for Ben Parish to be treated and prepped to be put into Wonderland. Ben lures Kistner to the bathroom and then knocks him out and steals his orderly uniform. He is left unconscious in the shower stall of the bathroom. After Ben left him, he had internal debates on whether it was wise to just leave him unconscious or if he should've killed him.

His ultimate fate was left unknown.