Cogs

Cogs appeared in 1996 TV series called Power Rangers Zeo. Cogs were the mechanical servants who serve as the foot soldiers of the Machine Empire. The Cogs can only be defeated by short circuiting or disassembly, and are produced at the rate of 1 per hour. Their helmet can open up and fire eye beams at their targets. Their primary weapons are spears with an electric charge tip, some could also fire blasts of energy. The Cogs also come with a silver or gunmetal body as well as piloting the Quadrafighters.

Like the Tenga Warriors before them, Cogs are capable of fluently speaking English, albeit in a monotone robotic voice. The Cogs also seem to be more intelligent than any of Rita or Zedd's foot soldiers, as their behavior is much more organized and focused. An example is during the episode "The Shooting Star", a group of Cogs encounter Bulk and Skull during a search for the newly created Zeo Zords. Instead of attacking the duo, the Cogs decide to ignore them, and instead focus on finding the Zeo Zords.

In "Forever Red", General Venjix had an army of Cogs under his command until they were defeated by a team of Red Rangers led by Tommy Oliver.