I'm a Singer/Characters

Kim Gun-Mo

 * My Greatest Second Chance: Subverted hard during the "retry" controversy.

Lee Sora

 * One of Us: Has a World of Warcraft account, and is reportedly good at the game.

Yoon Do-Hyun

 * Epic Rocking: Is responsible for going on a song for eight minutes, in a show where a song length of four minutes is considered average.
 * Fan Nickname: For Yoon Do-Hyun, "Rock and Roll Baby".

Kim Beom-Soo

 * The Faceless: Used to be this.

Park Jung-Hyun

 * The Napoleon: She isn't even five feet tall. Subverted in that she is a very nice person.
 * Older Than They Look: She's 35.

Yim Jae-Beom

 * Fan Nickname: "Rock and Roll Daddy".

JK Kim Dong-Wook

 * Expy: Accused to be this for Yim Jae-Beom.

BMK

 * Scatting: Did this in a couple of performances, to a splendid effect.

Cho Kwan-Woo

 * Everythings Funkier With Disco: In one particular performance.

Kim Yoon-Ah

 * Let's Get Dangerous: From Jazz Cafe and onward.
 * Older Than They Look: She's 37.

Yoon Min-Soo

 * Younger Than They Look: He's 31, but certainly doesn't look like it.

Insooni

 * Shocking Elimination

Kim Kyung-Ho

 * Camp Straight: Has long hair, likes pink, and collects kitchenware.
 * Even the Guys Want Him
 * Ship Tease: With Kim Yeon-Woo after the duet.
 * Vitriolic Best Buds: With Park Wan-Kyu.

Cho Kyoo-Chan

 * We Hardly Knew Ye: Probably the biggest casualty of this trope in this show.

Park Wan-Kyu

 * Vitriolic Best Buds: With Kim Kyung-Ho.

Tei

 * We Hardly Knew Ye