Why would I? The players up here tried to kill us at every chance.
Do Jung-soo telling Seong Gi-hun, Cho Sang-woo and Kang Sae-byeok why he didn't reveal the correct glass tiles earlier in "VIPS"
Do Jung-soo (도정수 Do Jeong-su?), also known as Player 017, was a former glass manufacturer and contestant in the 33rd Squid Game in 2020.
History[]
Do Jung-soo was born on June 23, 1965 in Gyeonggi Province, South Korea. He began attending Bucheon Industrial High School in 1981, later graduating in 1984.[1] He briefly worked a position in construction management before getting a job at a glass factory in 1987, where he continued to work for the next 33 years.
In the early 1990s, he met his future wife Kim Eun-sook. On July 12th, 1993, Do Jung-soo's first daughter, Do Ji-hye was born. Later, on November 11th, 1995, his second daughter, Do Ji-yeon was born.
In 2019, he began falling into debt and had his driver's license suspended after being caught drunk driving multiple times. He was fired from his job the following year due to this. He was unable to find new work and his debt continued increasing, so he chose to enter a high-risk competition to win money.
After joining, Jung-soo managed to survive the first game, Red Light Green Light, where most of the contestants had been eliminated. Afterwards, he was sent home when a narrow majority of the remaining players voted to end the games. He later returned along with most of the other players.
He managed to survive the second game, Sugar Honeycombs, the third game, Tug of War, and fourth game, Marbles, where he beat his partner, Player 413. He managed to survive until the fifth game, Glass Stepping Stones. For this game, he chose the number 13, which meant he would be the thirteenth player to go.
Death[]

Do Jung-soo being pushed off by Cho Sang-woo to his death
During Glass Stepping Stones, Jung-soo could differentiate between the tempered glass and the regular glass based on the refraction of the light, gained from his experience of being a glass manufacturer. Despite this, he chose to keep this information to himself and waited until all players in front of him were dead to tell the remaining players behind him about his skill, fearing to be killed by the others if he had revealed it earlier.
When it was his turn, Jung-soo finally used his strategy to get to the last glass panel before the lights were turned off. He used the marble of Player 456 to try and tell through the sound that it made, and wanted another one to hear the other panel just in case. However, time was running out, and Player 218 pushed Player 017 off the bridge to his death for taking too long guessing the last glass panel, placing him 4th in the entire competition.
Trivia[]
- It is true that he could have saved himself if he used the marble first on his glass panel and then on either panel in front of him to see if they made the same/different sound. However, there is a high likelihood that the sound of his own panel would have been different due to that he was standing on it and thus creating tension in the glass' structure.
- According to his player file, Do Jung-soo's resident registration number is 650623-1205714, and he resides in 329 Songnae-dong, Bucheon. His wife, Kim Eun-sook, works at a restaurant. His older daughter Ji-hye works at an unnamed company, while his younger daughter is unemployed.
Mistakes[]
- On his player file, Do Jung-soo's name is romanized as Do Jeong-soo instead, even though he is credited differently everywhere else. The reason for this inconsistency is unknown.
- A blurb on his file states that he worked as a glass worker from March 1897 to April 2020, in direct conflict with the rest of his file, which states that he started in 1987 and stopped working in January, not April.
- There is a continuity error in VIPS where he is listed as Player 087 instead of Player 017.
- The 3rd Player 017 you see in Episode 5 was portrayed by an unknown extra, The main Player 017 was portrayed by Lee Sang-hee
- Another Player 017 is seen behind Gi-hun at the start of the initial chaos.
- The other Player 017 is seen in the lobby.
- Although his real partner was Player 413, he is seen with Player 081 when Han Mi-nyeo begs Jung-soo to be his partner but that was a mistake by Netflix and Player 081 would have died before marbles.
Behind the scenes[]

The Player 017 seen after Lights Out.
Do Jung-soo was portrayed by Lee Sang-hee and five unknown extras. In an interview, he stated that when he got the script for the show, he grew out his hair because he was reminded of the glass craftsmen that worked at a nearby glass factory when he was young, who had similar hair.

Player 017's corpse (behind the scenes)
Gallery[]
Behind the scenes[]
Appearances[]
- Season One
- "Red Light, Green Light" (error; icon only)
- "Hell" (error)
- "Stick to the Team" (icon only)
- "A Fair World" (error; icon only)
- "Gganbu"
- "VIPS"
References[]
- ↑ 1.0 1.1 1.2 "VIPS", 47:02
- ↑ In Korea, 1 year is added to the person's age after birth, so if he was born in 1965, he would be 56 as the Glass Stepping Stones Game took place on June 28, 2020.
- ↑ Assuming the remaining games all occurred on consecutive days after the Squid Games resumed, Glass Stepping Stones most likely took place on June 29, with the final game happening on June 30.