Leon Scott Kennedy

Leon Scott Kennedy is a playable character in both Resident Evil 2 and Resident Evil 4

Resident Evil 2
He is just a rookie cop who only recently joned the Raccoon City Police Department (R.P.D.) He is highly qualified for his job though there is still some lack of experience.

Resident Evil 4
In RE4 he is a U.S. Agent tasked to look into the abduction of the President's daughter, Ashley Graham, and seek out her location.