Luis Sera

A little rough, don't you think?

Luis Sera is a character from Resident Evil 4. He claims to have formerly worked as a police officer in Madrid after first meeting Leon S. Kennedy. However, he later admits to Leon that he is actually a researcher working for Osmund Saddler. Also, Ada's report on Sera states that he studied biochemistry at a university, before going on to establish himself as a brilliant scientific researcher.

Early life
What is known about his past is that he was a native of the village and was employed by Saddler as a researcher to find ways to strengthen the Plaga parasites. According to a file, he and his grandfather used secret passages around the village.

Saddler
When he becomes disillusioned with Saddler, and the work he was performing for him, Sera decided to betray Saddler and steal the sample of Las Plagas; Eventually, though, Saddler catches up with him and orders his followers to tie him up and put him in a closet to be executed. However, Leon Kennedy finds Sera in the cabin, and frees him. Sera later helps Leon and Ashley fight off a mob of Ganados. He then goes to get the sample and vaccine for the Plagas parasite for Leon and Ashley.

Unfortunately, Saddler impales Sera through the chest with his tentacle tail. Before dying, Sera gives Leon some pills to suppress the growth of the Plaga in his body, as well as leaving behind all of his research notes - scattered throughout the castle and island complex. These memos provide Leon with useful information on the behaviour of Las Plagas and how to destroy many of the creatures introduced during the course of the game. The plaga-removing machine which Leon and Ashley use near the end of the game was invented by Luis. It is also mentioned in one found note that he was able to remove the Plaga egg before it hatched in his body.

The "Separate Ways" scenario and "Ada's Report" documentary added to the PS2 version and wii version of the game expands on Luis's role in the game, depicting him as in league with Ada Wong and the organization she works with (a connection that was only implied in the main game).

Trivia

 * During the Chapter where Leon and Luis fend off numerous Ganados, Luis will duck to avoid friendly fire whenever you aim in his direction but he still can be deliberately hit, and if enough damage is taken; there will be a special cutscene where Luis shoots 2 bullets into Leon's heart, killing him.


 * Luis' weapon of choice is his Mauser C96 pistol.
 * If, durring Seperate Ways, you have Ada look at various things during Chapter 2, she will refer to Luis as "Mister Cool", The "Spainard",  and "that womanizer".