Guess that Hunger Games Character!

Welcome to my second to last Hunger Games post. *group "Aw"* I know, I know, that means it's a day closer to MOCKINGJAY! *group cheer*

Alright, today to test your Hunger Games trivia I want you to "Guess that Character!"

Character #1
A female. She was in the 74th Hunger Games. During the Hunger Games this girl killed Glimmer from District 1, the girl from District 4, and Marvel from District 1. One of her weapons; a knife.

Character #2
A male. This character's only appearance (so far) was is Catching Fire. Replaced Crane as Peacekeeper.

Character#3
A female. Her appearances have been in The Hunger Games and Catching Fire. She is featured only twice in The Hunger Games, but she gives something to one of the characters that may or may not be important.

Character #4
A male. He lives in the Capitol. His appearance is "snake-like." He is cruel and not afraid to torture or kill people.

Can you guess these four characters?

~M.A.CHASE♥