Lauren Di Luca is a supporting character in the anime Vatican Miracle Examiner. He works within the information department of the Vatican, where his primary role is to support the investigations of the miracle examiner Hiraga Josef Kou by collecting information and procuring necessary equipment. His background is largely mysterious, and he is described as a genius whose abilities and knowledge make him a valuable asset to the Vatican's operations. Despite his affiliation with the church, Lauren identifies as an atheist and has no personal interest in religious matters. His relationship with Hiraga is notably friendly, and Hiraga attempts to engage his cooperation by appealing to his interest in intellectual challenges, framing their work as a game between angels and devils.

Lauren's personality is characterized by a calm, reserved demeanor and a logical approach to problems. He is highly intelligent and appears to possess a deep understanding of technology and information systems. A significant aspect of his character is that he is effectively a prisoner of the Vatican; he wears a special device that releases poison throughout his body if he leaves a designated area, a measure taken to prevent his escape due to his involvement in criminal activities tied to Vatican interests. This confinement shapes his motivations, as his cooperation with the church is likely a condition of his detention. Over the course of the story, Lauren's development is limited, but his interactions with Hiraga provide glimpses of a growing mutual respect and perhaps a softening of his detached attitude. His notable abilities include genius-level intellect, expertise in information gathering, and technical proficiency, all of which he uses to aid the investigation of alleged miracles and the mysteries surrounding them.