Conscience is an overweight, gray haired, older man. He is portrayed as the personification of Blockhead's conscience- his little voice of reason inside his head. Conscience is known to be a bit more then just a little voice, when he has an opinion, he won't hesitate to share it. Conscience is pretty much always in a bad mood, which is usually caused by Blockhead. Whether his anger leads to aggression just depends on the day, or more accurately, the time of day. 