Answer
The answer is Finnick Odair, a charismatic and resourceful tribute from District 4 in the Hunger Games film series portrayed by Sam Claflin. As a skilled swimmer and trident user, Finnick proves to be a formidable opponent in the arena. His ability to command attention and manipulate situations makes him a valuable ally to protagonist Katniss Everdeen, providing emotional support and strategic assistance during the deadly competitions.