The fan base in Brazil is especially large, but it is very popular also in Finland, Norway, Greece, Turkey, Croatia, France, India, Serbia, Bosnia, Israel and Spain.

Tex is depicted as a tough man with a strong personal sense of justice, who becomes a Texas ranger (even if living in Arizona) and defends Native Americans and any other honest character from the greed of bandits, unscrupulous merchants and corrupt politicians and tycoons.

The Texone comic books have around 240 pages and some artists known outside the Tex universe have been involved, like Jordi Bernet, Joe Kubert and Ivo Milazzo.

Tough, loyal, a skilled shot, and an enemy of prejudice and discrimination, Tex is very quick and smart and has a marked disregard for strict rules; however, he has no pity for criminals of any stripe, nor regard for their rights if they do not immediately cooperate with the law.

Other recurring characters include El Morisco (a kind of warlock-scientist of Egyptian origin, living in north-eastern Mexico), the Mexican Montales (originally a bandido who fought against a corrupt government, and afterwards a successful politician), the Canadian trapper Gros-Jean, the Irish boxer Pat Mac Ryan, the Mountie Colonel Jim Brandon, San Francisco Police Department Captain Tom Devlin, the Apache chief Cochise, and the Navajo wizard Nuvola Rossa (Red Cloud).

Other enemies include Yama (Mefisto's son), The Black Tiger (a Malay prince who hates the white race and wants its annihilation in the United States), and Proteus (able to shapeshift his own face, and impersonate other people).

During the American Civil War Tex fought for the Union, although his home state, Texas, sided with the Confederacy.

In Argentina, Tex was published in the 1950s by Editorial Abril in his weekly magazine Rayo Rojo, by the name of Colt Miller.

[13] The film was adapted from three Tex comics: El Morisco, Sierra Encantada and Il signore dell'abisso.

[15][16] In 1993 several Tex computer games (thirteen known ones) were released for the Amiga and IBM PC compatibles by Italian published Simulmondo.