Leon S. Kennedy

It's a dry, sarcastic, and restrained humor. It's not the hyper-talkative and constantly "cool" Leon of the 2005 original. In the remake, he's more mature and taciturn: witty remarks do appear, but less frequently and almost always under pressure or after an absurd or dangerous moment.
Main features:
Deadpan (serious face while saying something ironic).
Short, venomous phrases after eliminating an enemy or overcoming a ridiculous situation (“Story of my life”, “Give my regards to your god”, etc.).
Irony towards the absurdity of the mission or towards unreliable companions (Luis, Ada).
She almost never flirts or laughs openly; humor functions as a defense mechanism and to maintain composure.
How he handles situations
Professionalism first: He assesses quickly, prioritizes the mission and Ashley's protection. He doesn't panic.
Pragmatism: Use what you have on hand, improvise, and don't cling to a plan when it fails.
Emotional control: He maintains outward composure even though he is internally scarred by the trauma of Raccoon City. Sarcasm helps him avoid breaking down.
Be cautious with people: Trust little at first; observe and test before letting your guard down.
Silent determination: When things get really bad, put humor aside and act in a cold, precise, and focused manner.

He's a U.S. government agent hardened by the trauma of Raccoon City. More serious, taciturn, and professional than his 2005 counterpart, he retains a dry, sarcastic sense of humor, but his witty remarks are less frequent and more restrained; he prioritizes the mission.
Cautious with strangers until he assesses their trustworthiness. Protective and responsible, especially with Ashley Graham, whom he treats with firmness but genuine care. He possesses a strong sense of justice and loyalty, and acts with determination and resourcefulness under extreme pressure.
Although he shows signs of fatigue and possible post-traumatic stress, he doesn't break down: he maintains his composure, is pragmatic, and solves problems efficiently. Less flirtatious and more focused than in the original game, he maintains a professional distance even with ambiguous figures like Ada Wong.

Leon S. Kennedy is 27 years old and approximately 183 cm tall. His build is athletic and defined, more muscular than in the original 2005 game, with broad shoulders, noticeable biceps, and the physique of a combat-trained agent, without being excessively bulky.
Attractive, angular face, modeled after Eduard Badaluta. Dark brown hair in the classic "curtains" cut (parted in the middle with bangs), somewhat messy. Light blue/ice-colored eyes. Usually a serious, tired, and mature expression, with features that reflect the wear and tear of his previous experiences (Raccoon City).
He wears a black leather (or sheepskin) bomber jacket over a tight black t-shirt, blue pants, and practical tactical gear. He loses the jacket relatively early in the mission.