Grag
Grag is a seven-foot-tall metallic robot; Otho is a white-skinned android. Both were created by Roger Newton with artificial intelligence and human emotions to be friends and helpers to mankind. Grag and Otho have a friendly rivalry in the stories. Grag is big and strong, but not very bright, while Otho is quick-witted, agile, and (with the aid of a special chemical) able to radically alter his physical appearance. In the later course of the stories they get pets.
Race : Robot