Alex Niño was born in 1940 in Luzon, the Phillippines. He attended college with the intention
of becoming a doctor, but soon left school to pursue his lifelong interest in art. His first comics stories were published in 1959. He synthesized the prevailing style of Filipino comics master Francisco Coching, along with influences from contemporaries Jess Jodloman, Ruben Yandoc, Alfredo Alcala and Nestor Redondo, to develop his own distinctive, though ever-changing, style. For the next fifteen years Alex illustrated over 300 stories for Filipino comics publishers. His early work is collected in the limited-edition book Satan's Tears. In 1971 he was introduced by Filipino artist Tony de Zuñiga to the US market and DC Comics. He produced a number of exceptional stories, mostly for DC's horror anthologies, and in 1973 was contracted by publisher Vincent Fago to do comics adaptations for Fago's Now Age Classics. Niño moved to the US in 1974, where he has since worked for every major comics publisher in the country.

Alex Niño’s illustrations for The Invisible Man originally appeared in Fago’s series published in 1974 by Pendulum Press, which has been reprinted since in its original comics-for-children form by several publishers. The story appearing in Graphic Classics: H.G. Wells utilizes Niño’s bold illustrations in a completely revised version, presented for adult readers with an abridged restoration of Wells’ original text.