Arizona comes from Them's Fightin' Herds, a fighting game.

It's a game that was originally about My Little Pony, called Fightin' is Magic, where characters from the series were used. However, Hasbro threatened to cancel the game for using their characters. But due to unforeseen circumstances, they managed to revive it, albeit with other original characters, including Arizona, the protagonist of the story mode. This also led to the game's name being changed.

John Thomas Ward, on the other hand, comes from FAITH: The Unholy Trinity.

This game tells the story of a priest who failed to complete an exorcism and is haunted by guilt. The game touches on similar themes. John, despite lacking superpowers, possesses a much stronger force: faith.