Speed Demon

A speed demon (の), also known as a speedster, is a person whose powers primarily relate to super-speed. Primary abilities shared by all speedsters include running at speeds far in excess of human capability (to varying degrees) and resistance to the side effects (air resistance, inability to breathe, dynamic shock resulting from contact with objects at high speed, etc.) that result from such velocity. In almost all cases, speedsters are able to physically attack opponents by striking them while at high speed to impart huge amounts of kinetic energy without suffering harm.

Notable speed demons include Legends members Marcus Allen and Ryan Harper, female speed demons Cassie Quick and Courtney Carone, and Earth 2's Marcus Taylor.