Dr. K is the main antagonist of Changed. They are a scientist from before the events of the game, whom intentionally transfurred themself using their own drug that would allow its user to retain their memories and free will. They try multiple times to contain the human (Lin), who they believe may carry the virus, from the outside world.
Dr. K is a bioengineer scientist, and as such, they operate with a cold and calculated behavior - which is especially noticeable in the Special Edition where they completely disregard Puro's and Colin's attempts to leave and interfering with him maintaining the probable safety of the remaining human population. They display deep concern for the survival of humanity. This is in spite of themself no longer being human, which they mention several times. They are committed to keep the protagonist in the Thunder Science facility to prevent the virus from spreading again.
As a male, Dr. K is a white wolf with red eyes. He wears a respiratory gas mask, and his only article of clothing is an oversized white lab coat.
As a female, Dr. K mostly has the same base appearance, except she has hair-long fur heavily resembling hair. Her gas mask has more detail, and the oversized trench coat has been replaced with her laboratory coat styled to look like a dress, and she lacks the tuft of fur on her chest.
