Known to those who ride the lightning as the 'zen guru of speed', Max Mercury is the oldest living speedster on the planet. Since he was blessed by the speedforce over 150 years ago, he has gone by many names - Windrunner, Blue Streak and Quicksilver among them. His longevity is accounted for by the fact that he has on several occasions come into close contact with the speed force that grants his powers but, for some reason, has not been absorbed into it, rather being catapulted into the future.
Having acted as guide and mentor to many super-speeding heroes, Max has most recently been a father figure to young Impulse, training him not only in the use of his speed but in the ways of the world. However, the evil speedster Rival has forced Max out of the usual physical plane of existence, and it is unknown how it may be possible to retrieve him.