My long time collaborator, Kris Smith, is working on some Ape-themed villains I created a few years ago, tied to the background of the hero American Ape.
First up is Simius, AA's brother. Having lost the competition that allowed his brother to become American Ape, Simius decided to conquer the world. Using some high tech gauntlets created by his people, he leads a group of super powered gorilla in his quest to rule the world:
The first to be enhanced by Simius, Brain Ape has various mental powers to go with his super genius intellect:
Ice Ape is a female Ape who was given Ice Powers by Simius:
Iron Ape obviously, has Iron Skin:
The last of Simius' super powered servants, Shape Ape can mold his body into other forms, as well as create weapons from his limbs:
Lastly, every world conqueror needs an army. While his isn't large, the ones who serve Simius are Gorillas armed with ray guns: