Codo was a one-time character that appeared in Robot Jeffy. Codo was a robotic servant created by Cody that would do anything he would say, no matter what. He was also the one who created Jeffo, which Cody ordered him to do. He appeared to be less violent than Jeffo. He blew himself up by accident after trying to kill his "son" Jeffo with his laser eyes.
Codo resembles Cody except with red metal eyes.