Telleppa is of the same species as Qo. I think she was tasked with seeking out Qo's remains (penciled in the lower left of the first image below,) with some fancy backstory if I'm not mistaken. She also didn't get past level-0, although I forget her fate.
After moving on to the next character, Telleppa evolved into a sort of representation beyond the gaming experience. Below are a couple of drawings from that "post-game" period. The blue-streaked feather was an important symbol at the time.