Legion ex Machina

The Legion Ex Machina are the most recurring antagonists in the cartoon Big Guy & Rusty the Boy Robot. The group consists of seven members, most of whom are identical. Despite having the same appearances each member has a different cybernetic modification. Their origin and intentions were slowly revealed as the series progressed. There is still a member left who hasn't been revealed.

Birth
The Legion Ex Machina was invented by Dr. Roland Poindexter. His goal was to create what he perceived as the perfect artificially intelligent robots. He was successful but that was also his downfall. His creations soon turned against him. They placed Poindexter in stasis where they had complete access to his mind. The legion then built a secret base and began their goal to eradicate mankind.

First Creation
ARGO-12 was the first robot created by the Legion Ex Machina. It's purpose was to recruit any other robots to join the legion. It would terminate any of them if they refused the offer. It was powered by packs of nuclear energy that #6 stole from where he worked. ARGO-12 engaged in a fight with the Big Guy and was almost successful. It ran low on fuel and was given a defective nuclear pack from Rusty which resulted in a massive overload. ARGO-12 was scrapped afterward.

Rebellion

 * 1) 6 (also known as Dr. Gilder) was placed inside Quark Industries as a mole to gather information. He still felt human emotions which his peers considered a weakness. He harbored bitter feelings toward the CEO, Quark Donovan, for destroying his inventions. Gilder eventually lost his patience and shifted his focus towards killing Donovan. His first attempt was to hack a robot but it was stopped by the Big Guy. He then hacked into Rusty and controlled the boy as an assassin. However, he was stopped when one of Quark's scientists, Dr. Slade, discovered what he was doing. She dispatched security but he literally threw them aside. Dr. Gilder chased her to a grinder and lost his skin in the process, revealing he was a robot. Big Guy and Rusty reached Slade in time. Dr.Gilder fell into the grinder. The Legion Ex Machina showed no pity in the demise of their colleague.

Second Creation
ARGO-12000 was the legion's next creation. It was a 400ft version of ARGO-12. ARGO-12000 was sent to steal a Micro-Fusion generator that could be used to build more robots like it. The body parts of ARGO-12000 were transported through an underground rail station. The remaining piece - the left hand - was salvaged before construction was complete. This didn't stop the robot from stealing the micro-fusion generator which was successful. ARGO-12000 headed towards the nearest ocean but was shot by a green beam from its missing hand. It collapsed and went permanently offline. The generator was recovered.

Meeting Big Guy
Sometime later, the legion sent it's fifth member to collect a robot. This was the first direct encounter between the Legion Ex Machina and the Big Guy.