He is referred to simply as "The Gambler", with his in-game profiles being the only place where his real name, Pierre, appears.
In Yu-Gi-Oh! GX Tag Force, Pierre appears as an opponent during the Tag Force tournament, teaming with Blair Flannigan. After completing the game, he appears during part one at the pier, and can be selected as a partner, though the player must call his coin toss correctly.
In Yu-Gi-Oh! GX Tag Force 2, Pierre appears in the third story event if the player is partnered with a Tier 1 character.