Epi is a female Ninja Monkey that appeared briefly in the episode The art of monkey love. he was part of a unable-to-work trap in an attempt to capture Skunk. The two did become friends, and Epi (which is really a MALE ninja monkey in duisguse) later helped Skunk escape his fellow Ninja Monkeys. It is possible because of her interferencesat the monkey duisgused as epi was punished or something as a result