Twenty-Five Twenty-One

Kim Tae-ri

Na Hee-do

Nam Joo-hyuk

Baek Yi-jin

Bona

Ko Yu-rim

Choi Hyun-wook

Moon Ji-woong

Lee Ju-myoung

Ji Seung-wan

Kim Hye-eun

Yang Chan-mi

Choi Myeong-bin

Kim Min-chae

Joo Bo-young

Lee Ye-ji

Choi Min-yeong

Baek Yi-hyun

Kim So-hyun

Adult Na Hee-do

Park Yoon-hee

Baek Sung-hak

Kim Young-sun

Yi-jin's Mother

So Hee-jung

Seung-wan's Mother

Seo Jae-hee

Shin Jae-kyung

Lee Ye-jin

Park Han-sol

Heo Ji-na

Yu-rim's Mother

Kim Dong-gyun

Yu-rim's Father

Lee Chan-jong

Seo Joong-hyuk

Choi Sia

Baek Su-yeong

Jung Hyung-suk

Kim Hak-gyu

Ok Joo-ri

Ahyeon Supermarket owner

Park Yoon

Jung Da-yeong

Cho Min-wook

Kwon Dung-uk

Lee Seon-gu

National fencing team coach

Park Jung-pyo

Yi-jin's maternal uncle

Yoon Se-woong

Seo Yeong-seong

Moon Woo-bin

Kang Ji-soo

Bang Eun-jeong

Lee Da-seul

Jung Chung-gu

Myeongjin Book Rentals owner

Ok Ye-rin

Na Hee-do (young)

Kim Bum-joon

Ji-woong's friend

Kim Ha-ru

National team fencer

Lee Dong-kyu

UBS Network Sports anchor

Choi Tae-joon

Jung Ho-jin

Baek Suk-kwang

Na Sung-jin

Jung Yong-ju

Delinquent boy

Lee Joong-ok

Fencing club coach

Ri Min

Chinese restaurant owner / Newspaper delivery subscriber

Bae Sung-il

Mr. Baek's ex-employee

Kyung Da-eun

Ko Yu-rim (young)

Jo Nam-hee

Taeyang High School headmaster

Seo Jeong-bin

Kim Jong-chan

Yeon Seung-bin

Choi Won-hwan

Jeon Yeong

Yogurt lady

Lee Kyung-oh

UBS Network director

Han Gyu-hyuk

Kang Hak-rae

Garrison Farquharson-Keener

Alan Smith

Shin Yeon-sook

Hee-do's grandmother

Kim Joon-hyung

Sanga University coach

Yoon Ju-man

PD Park

Lee Si-hoo

UBS Network cameraman

Park Ji-ho

UBS Network documentary staff

Oh Choong-geun

UBS Network staff

Kim Tae-moon

UBS Network cameraman

Jeong Young-do

UBS anchorman

Ji Hyun-woo

Jungle Prince bassist

Kang Sung-hwa

Jungle Prince guitarist

Im Woo-chan

Jungle Prince drummer

Kang Seong-jin

Jungle Prince keyboardist

Shin Hee-cheol

Builder / Detective Kim

Park Ki-deok

Lee Gi-hun

Kwon Dan-a

National team fencer

Ji Yun-seong

Reporter

Yoon Tae-yi

Seon Jung Girls' High School Fencing Team Player

Kang Hoon

Baek Yi-hyun (adult)

Park Jin-soo

Seo Hye-jin

Jung Yoo-min

Hwang Bo-mi

Kim Tae-yoo

Kim Yoo-jin

Lee Ki-bbeum

Bo-mi's friend

Song Young-joo

Bo-mi's friend

Yu Bee

Yi-jin's friend

Jang Yeon-woo

Yi-jin's friend

Lee Ha-joo

Fencing team player

Shin Ga-eun

Jang Chae-hee

Im Yong-soon

Security guard

Kang Hak-soo

Loen Hotel employee

Park Bu-keon

Mr. Baek's ex-employee

Jo Hyeon-jin

Taeyang High School teacher (Eps 2)

Ma Jeong-pil

Taeyang High School faculty member

Jeon Se-yong

Passerby

You Eun-a

Elephant Snacks diner

Seo Young-sam

Korean history teacher

Jeon Soo-hwan

Mr. Kim

Song Jae-saeng

Ms. Son

Son Young-soon

Bus passenger

Hong Eun-jeong

Job interviewee

Koo Ja-geon

Job interviewee

Choi Kyo-sik

Neighbourhood man

Kim Nam-i

Yi-jin's paternal aunt

Jang Jun-hyeon

Yi-jin's acquaintance / Director of Han River C&T

Lee So-yoon

Kim Min-chae (young)

Kim Na-in

Mover

Lee Beom-chan

Referee

Guk Joong-woong

Referee

Kim Nak-kyun

Detective

Lee Jae-woo

Photo studio owner

Seok-hee

Sawaguchi

Kim Ji-ho

MBS TV network employee

Song Yo-sep

MBS TV network department head

Jeong Jong-hoon

KBY TV network department head

Lee Jong-gu

Diner

Go Dong-eop

Diner

Choi Hwa-young

Diner

Bae Yu-ri

Hotel receptionist

Bae Hyun-kyung

UBS Network Sports department staff

Lee Jun-hee

Ha Byung-jin

Park Eun-young

Neighbourhood woman

Yun Bu-jin

Neighbourhood woman

Goo Si-yeon

Jae-kyung's co-worker

Kwak Myung-hwa

Fencing association executive

Kim Seong-yong

Disciplinary committee member

Nam Dong-ha

Disciplinary committee member

Yoo Min-joo

Park Hye-jin

Kim Si-kook

University teaching assistant

Cha Yong-hwan

Hwang Ho-jin

Oh Il-young

Carpenter

Jeon Jun-woo

Restaurant host

Park Yu-mil

UBS Network staff

Jeong Hyeon-cheol

Detective

Do Ye-chan

Policeman

Park Chan-young

Upset diner

Bae Ki-beom

Upset diner

Baek Ji-hye

Kim Da-mi

Lee Sang-kyung

Yang Chan-mi (young)

Kim Mi-hye

Shin Jae-kyung (young)

Kim Jun-ho

Jun-ho

Byun Yun-jeong

Ji-woong's mother

Yang Eun-sol

Reporter

Kim Jang-hwan

Reporter

So Jun-seong

Reporter

Na Ho-won

Bus driver

Choe Min

Fencing coach

Cha Mi-kyung

Victim's mother

Son Dong-soo

Sports agency employee

Choi Nam-wook

Fencing association employee

Kim Joo-ah

Sophia Choi

Park Yong

9/11 survivor

Lee Sung-il

UBS Network staff

Ha Seung-yeon

Hospital hallway woman

Park Se-in

Han Min-jung

Kang Moon-kyung

UBS director 2009

Park Bin

UBS Network staff

Park Bo-bae

UBS Network staff

Kim Nam-hee

Cellphone store employee

Jaspreet Kaur

Reporter (voice)

Kim Do-gyeong

Staff