Brio is a tall man with an equally tall completely bald head shaped like a theropod dinosaur egg with twin electrode-like bolts attached to the sides like Frankenstein's monster, but he had blonde hair during his childhood. He is shy and meek, which serves as a contrast to Dr. Cortex's megalomania. He has never had people respect him or take him seriously, resulting in a low self-esteem. It is this weakness that originally caused him to join Dr. Cortex in his plot for world domination. Brio was an assistant to Cortex, while he was somewhat loyal, he had his doubts over whether Cortex's plans can actually work. He stutters and laughs or babbles on nonsensically when speaking to someone, where nobody is able to understand him. He is responsible for taking Neo's original faulty Evolvo-Ray and refining it into a fully functional weapon. However, his lack of self-esteem allowed Dr. Cortex to take full credit for the creation. As a child, Nitrus Brio was a classmate of Neo Cortex and N. Gin in Madame Amberly's Academy of Evil.
N. Brio has a few friends and they are:
N. Gin, N. Tropy, Tiny, and Ripper Roo
N. Brio also has a few enemies as well and they are:
Dr. Cortex, Crash, Coco, Tawna, and Crunch