Lee Cheong-san

* Alive
* Infected

**Lee Cheong-san** (Korean: 이청산) is the male protagonist in All of us are dead. He is portrayed by Yoon Chan-young. He is voiced by Harrison Xu in the English dub.

## Before the apocalypse

Cheong-san lives with his parents who run a chicken restaurant. He was named after the chicken restaurant. He is close friends with Nam On-jo and Han Gyeong-su. He had a crush on On-jo but never fully admitted it until very late.

## After the apocalypse

At the start of the zombie outbreak, he was in the cafetaria with On-jo. He and On-jo managed to escape during the chaos from the side windows with a few students. They later run through their school and eventually reach a classroom where their surviving classmates were.

When the group were hiding in the broadcasting room, he and Su-hyeok went down the windows to reach the teachers' office and find a cellphone in order

to call for help. However, they encountered Min Eun-ji, who was smashing all the phones. When she noticed Cheong-san reaching for a cellphone, she attempted to attack them, but Su-hyeok defended him. Eun-ji's screams drew more zombies into the room, which separated him and Su-hyeok. Later, he entered the principal's office and recorded Yoon Gwi-nam murdering the principal. This led him to be chased by Gwi-nam. The chases ended when Cheong-san gouged Gwi-nam's eye off and throw him into the zombies in the library. When he attempted to make a call, the cell services were cut off in Hyosan by the military. He eventually hid in the music room. The group found him there by using their drone.

The group soon got to Cheong-san by using the PA system to lure the zombies on one side. They went to the rooftop by playing music at the music room. When they got to the rooftop door, they found that the doors are locked. They tried hard to open the door but it didn't open. Gwi-nam got to them and started attacking Cheong-san but Nam-ra was able to fight him, thanks to her hambie abilities. Eun-ji lit a fire in the teachers' office, causing the fire alarms to go off and the rooftop door to be opened.

When it was raining, they decided to go to the mountain as they realised that zombies can't hear or smell them at this time. They got to the mountain and united with Jang Ha-ri, Jung Min-jae, Park Mi-jin and Yoo Jun-seong. They got to the construction site, where Gwi-nam finds them and bites him. After Gwi-nam bit him, the military started sending the 24Hz drones to distract the zombies, causing Gwi-nam to cover his ears. Cheong-san pushed him and said goodbye to the group. He hugged and kissed On-jo, before going in the building to lure the zombies to allow his friends to escape. After evading the zombies, he fought Gwi-nam, but Gwi-nam was able to gouge his eye out in revenge. When the school was bombed by the military, he grabbed Gwi-nam and used him as a shield before jumping into the elevator shaft as the flames consumed both of them. Their bodies are never clearly seen after the bombing of Hyosan.

Cheong-san took many heroic jumps during the time inside and outside of the school. He also took a leader role in many of the situations, but left it for Su-hyeok. He was very brave and even a tough situation couldn't mess with his mindset. His main goal throughout the entire Netflix series was to protect On-jo. Most of his decisions were based on his feelings for On-jo. She rejects him, but after he saw his zombified mother, she grew closer to him romantically.