Dopamine: Appears as an old man/trickster figure. Dopamine causes pleasure, most notably in sex when a person orgasms. When I worked with him this time, as with when I first worked with him, he reminded me to use dopamine carefully...that it's not something to be abused. This makes senses to me, especially if you consider the possibility of addiction to the pleasure. Norepinephrine: Appears as a kabuki Actor. Norepinephrine causes numbness, so its basically a natural painkiller for the body. There's some definite applications when used in combination with other neurotransmitters.