Read more about Olivier at: Wikipedia

Official Site: Marvel comics

Olivier is a fictional character in Marvel Comics.

A mafia figure called "Frank Costa" first appeared in Marvel Super-Action #1 (January 1976), a black-and-white magazine containing several adventures of Frank Castle, Marvel's Punisher character. Twenty-three years later, in Punisher (vol. 4) #1 (November 1998), it was revealed that "Frank Costa" was actually a demonic lord of hell in disguise, who may or may not have been responsible for tempting Frank Castle into his murderous crusade against the criminal underworld.

At some unspecified point in the past, there was a war in Heaven against God, in which the demon Olivier sided with Lucifer and was cast out of paradise. Olivier eventually came to rule a portion of Hell but the other lords of hell grew resentful of his ambition and they forced him into the body of a stillborn human infant. Olivier's spirit returned life to the infant, although he lost all memory of his life as a lord of hell.

Olivier grew up as a human named Frank Costa, in the Costa crime family, an arm of the Maggia. He became a petty criminal, and one night, while working as a lookout he shot and killed a mobster from a rival family. This act of taking a human life completely restored Frank Costa's memory of his life as Olivier, and he started plotting his revenge on the lords of hell that had placed him in that body.

Olivier has not been a contender in any CBUB matches.