Dr. Tommy is the creator of most of the robots in Lunar City and was the enemy of Dr. Blood. He was commemorated by the robots on Dr. Tommy's day. He was also the creator of Blip as opposed to his counterpart, Bolts, who was made by Dr. Blood.
He is tall, as opposed to Dr. Blood, who is short. He sports glasses and a brown moustache on his face. He wears a white spacesuit which includes a yellow visor, with a green logo on the torso.
He is shown to be very gentle towards Blip and the rest of the protagonists. He told Blip that he needed faith to win against Dr. Blood when Blood was about to destroy Lunar City with Bolts who as turned against Blip and his ultimate creation, the Megablood. Blip eventually gets Bolts back on the good side, defeats Dr. Blood, and becomes Saedee's girlfriend. They eventually celebrate as the first human children arrive on the Moon on a space bus (although they were never seen).