It turned out that Teddy was an assassin bug. Assassin bugs are actually pretty cool bugs. They have a very long mouth piece that is referred to as a beak which they use to quickly attack their prey and eat them. When they bite their prey, they inject a strong poisonous toxin that liquefies the preys tissue so that the assassin bug can eat it. Assassin bugs are good for the environment and for farmers, because they control some unwanted pest species that can be a hindrance to humans. They will eat just about anything if they are hungry.
Assassin bugs have six legs and two antennae. They have a hard exoskeleton that can protect them from enemies. When they become adults, the assassin bugs have wings underneath their exoskeleton that they can use to fly. I only saw Teddy jump around and try to fly. He couldn't go very far seeing that he was inside a habitat.
Teddy brought a good balance to the habitat I have because he would take any uneaten food from the spiders and eat it himself. He was a good addition to the spider habitat. Unfortunately, he was taken and eaten by a spider in the habitat after getting too close to the spiders and falling into the web. This was all about a year ago. I haven't come across anymore bugs like him, but if I do, I'll be sure to add it to the habitat. :)