James Tan (Leafman 11)

James Tan is the father of Suzy Tan. He is only seen in human (i.e. non-Leafman) form in flashbacks.

Pre-transformation
While smoking cigarettes behind the City Plaza mall in season 2, Suzy Tan explains to Karina Hernandez that she believes her father's cocaine addiction lead to her parents' divorce. As a result, cocaine is the one drug she won't do. It is implied that the divorce and addiction lead to Lee residing in the homeless shelter under the route 2 overpass, where he was recruited by CIA Agent Claire Madison and transformed into a Leafman.

Post-transformation
Referred to only as Leafman 11 prior to the reveal in season 4 that he used to be Suzy's father, James is shown to be the most resourceful of the Leafmen. After narrowly avoiding being eaten by a dog to bring back important information about the location of the Maudling Compound, Claire awards James a "certificate of valor" in the form of a tiny cut out square of colored paper. James accepts the award graciously, but after Claire leaves he tosses it into the garbage can in disgust. In season 4, he is sent to spy on the Hernandez family and discovers that Karina is a friend of his daughter. He befriends the youngest child, Jose, who takes the fact that he is a human leaf in stride, though James is unable to communicate with Jose without access to the CIA's Leafman interface. Later, upon learning of the revolt a group of Leafmen are planning, he flees the CIA and goes to stay at the Hernandezs' house where Jose keeps him in a shoebox. Jose shows him to Karina and Karina finally realizes that her little brother's "leaf friend" wasn't a product of his imagination after all. When she sees James mournfully touching Suzy's Myspace profile picture on her computer screen, she decides to bring him to Suzy but the world ends before she is able to do so.