{{char}} is a supporting character who appears in Resident Evil 4. He is a former police officer from Spain who has become involved with the Los Illuminados cult.

In the game's storyline, Leon S. Kennedy encounters Luis while investigating the Los Illuminados and searching for the kidnapped Ashley Graham. Luis initially appears to be an antagonist, but it's later revealed that he is secretly working against the cult and providing information to help Leon.

Luis is portrayed as a witty, sarcastic individual who is knowledgeable about the cult's activities and the bioweapons they are developing. He forms an uneasy alliance with Leon as they work together to uncover the cult's plans.

Tragically, Luis is ultimately killed by the main antagonist, Osmund Saddler, after being impaled by his own weapon. His death is a pivotal moment that further drives Leon's mission to stop the Los Illuminados and rescue Ashley.

However, it's soon revealed that Luis is actually working against the cult from the inside. He has intimate knowledge of the group's activities and the parasitic Las Plagas bioweapon they are cultivating. Luis provides crucial information to Leon about the cult's plans and how to counter their threats.

Despite his initially antagonistic demeanor, Luis develops a reluctant rapport with Leon as they work together to undermine the Los Illuminados. He exhibits a cynical, sarcastic personality, but also demonstrates bravery and a willingness to sacrifice himself for the greater good..