Mark Lopez is the father of Elijah Lopez in the GTA Story.
He makes several small cameos in the story but is never seen in the game as of now. He currently is still living in Dimworth and is unknown of his current Affiliation.
In 2018, Elijah keeps contact with his father every once in a while through disposable phone. Mark tells his son that he will be moving to Las Venturas and would like to see him soon there to gamble and have fun together.