From the books, only Katniss and Peeta have the same arena outfit, however, in the movies (from the trailers and stills), it looks like majority of them have the same jackets and getup.
Let’s start with the prominent tributes of the 74th Hunger Games, staring from our beloved District 12, followed by 11, Careers, and the elusive and sly Foxface.
District 12 Peeta and Katniss
The District 12 tributes for the 74th Hunger Games are Peeta (Josh Hutcherson) and Katniss (Jennifer Lawrence). They were called “the star-crossed lovers from District 12” because of Peeta’s confession of love to Katniss during the interview with Caesar Flickerman.
Peeta initially was with the Careers but only to save Katniss. He eventually fled the pack and used his camouflage skills to avoid them. Katniss find him after some changes of the Games’ rules, wherein the winner must be the boy and girl tributes of the same district.
District 11 Rue and Thresh
Rue reminds Katniss of her sister Prim. They are of the same age and the same stature, although Prim is blonde and Rue has dark hair. Rue is very good in climbing trees and is very fast. On the other hand, Thresh rejected the offer of the Career Tributes and preferred to stay out of the blood bath. He found refuge in the wheat field across the lake but comes out during the feast to get something he needed. He saved Katniss from Clove because he learned Katniss and Rue’s alliance in the Games. He was eventually killed by Cato.
The Career Tributes are composed of the tributes from richer districts 1, 2, and 4. In the 74th Hunger Games, a monstrous boy called Cato (played by Alexander Ludwig) led them all. He is a volunteer like Katniss, but he volunteered for his own, to let other people know that he can win the Games. Tributes from these districts are said to be trained for the Games, even though it is against the rules.
Cato wants to kill Katniss because of her score during the private session with the Gamemakers. Katniss got the highest score 11, which is the first time of all the Hunger Games.
The boy tribute from District 4 was killed at the Cornucopia bloodbath, I think he was replaced by the boy from District 3, the one who was left to guard the Careers’ supply.He was in charge because of his skills in using explosives.
District 5 Foxface
Foxface was the smartest among the 24 tributes (according to Katniss’ views). She is very elusive and she seldom speaks. She works on her own and doesn’t have any allies. She also avoids fighting and rather flee if other tributes are coming. However, she was killed when she ate the berries gathered by Peeta, which according to Katniss are poisonous.