Voice
Main poster for season 4
Hangul	보이스
Genre	Thriller Procedural
Created by	OCN Studio Dragon Choi Jin-hee
Written by	Ma Jin-won
Directed by	Kim Hong-sun (S1) Kim Sang-hoon (S1) Lee Seung-yeong (S2) Nam Ki-hoon (S3) Shin Yong-whee (S4)
Creative directors	Kang In-goo Kim Mi-ra
Starring	Lee Ha-na Jang Hyuk Lee Jin-wook Song Seung-heon
Composers	Gaemi (S1-3) Lim Ha-young (S4)
Country of origin	South Korea
Original language	Korean
No. of seasons	4
No. of episodes	58
Production
Executive producers	Lee Chan-ho Choi Kwang-yong Ma Jung-hoon
Producer	Kim Ryun-hee
Cinematography	Kang Seung-ki Choo Kwang-jae
Editor	Oh Sang-hwan
Camera setup	Single-camera
Running time	60 minutes
Production companies	Content K (S1 to S3) Story & Pictures Media (S4)
Original release
Network	OCN tvN (S4)
Release	January 14, 2017 (2017-01-14) – present (present)

Voice (Korean: 보이스; RR: Boiseu) is a South Korean crime-thriller television series starring Lee Ha-na, Jang Hyuk (Season 1), Lee Jin-wook (Season 2 & 3), and Song Seung-heon (Season 4) which follows the lives of 112 emergency call center and dispatch team members as they fight against crimes using the sounds that they hear. It premiered on OCN on January 14, 2017. The first season concluded on March 12.^[1] The second season aired from August 11 to September 16, 2018.^[2][3] The third season aired from May 11 to June 30, 2019.^[4][5] The fourth season was premiered on June 18, 2021, and it aired on every Friday and Saturday at 22:50 KST on tvN till July 31, 2021.^[6]

Series overview

Synopsis

Season 1

Moo Jin-hyuk (Jang Hyuk) is a "mad dog" detective who becomes guilt-ridden after his wife was murdered while he was at work. Kang Kwon-joo (Lee Ha-na) is a tough policewoman who is gifted with perfect psycho-acoustics skills and went for voice profiling. She was working at the call center when a brutal murder case took place and in the process of investigating, her father was killed. Three years later, Jin-hyuk and Kwon-joo team up as the "Golden Time team" and solve cases together, chasing after the psychopathic serial killer who took their loved ones.

Season 2

The Golden Time team solves urgent real-time incidents from phone calls received through the emergency service line. They race through the precarious time left for crime victims, who are held captive or being chased by their assailants and save them from the imminent danger. One day, a mysterious serial killer named Dr Fabre appears, A voice profiler police and center director of 112 call center, Kang Kwon-joo teams up with Dispatch Team Leader and stubborn Detective Do Kang-woo (Lee Jin-wook) to solve that crime. They try to arrest Dr Fabre while solving other diverse cases, including voice phising, date harassment, and illegal car racing.

Season 3

The Golden Time team solves urgent real-time incidents from phone calls received through the emergency service line. They race through the precarious time left for crime victims, who are held captive or being chased by their assailants, and save them from the imminent danger. One day, the team members face an international evil cartel that is behind a string of cyber crimes. In order to fight against the cartel and save lives within the golden time, a talented voice profiler police Kang Kwon-joo executes instructions to the detective field units, Do Kang-woo and his team.

Season 4

A serial killer with an enhanced hearing ability appears. The serial killer murders people using his enhanced ability. Because of this, Kang Kwon-joo, who also has an enhanced hearing ability, is driven into a corner. Kang Kwon-joo cooperates with Detective Derek Jo (Song Seung-heon) to catch the serial killer. Derek Jo is a person of principle, who doesn't allow mistakes. He is a team leader from the LAPD (Los Angeles Police Department). His LAPD team dealt with criminal gangs.

Cast

Main

• Lee Ha-na as Kang Kwon-joo
  • Choi Myung-bin as young Kang Kwon-joo^[8]
• Jang Hyuk as Moo Jin-hyuk (season 1)
• Lee Jin-wook as Do Kang-woo (seasons 2–3)^[9]
  • Bae Kang-yoo as young Do Kang-woo/Kosuke Matsuda (season 3)
• Song Seung-heon as Derek Jo (season 4)
  • Jung Hyeon-jun as young Derek Jo^[10]

Supporting

Cases characters

Season 2

Season 3

Season 4

Special appearances

Production

Development and casting

On November 2, 2017, a source from OCN confirmed production for the second season of Voice. On April 17, 2018, it was confirmed that Lee Ha-na would be reprising her lead female role and Lee Jin-wook would be joining season 2 as the new male lead.^[32] OCN announced a third season to be broadcast in the first half of 2019, with Lee Ha-na and Lee Jin-wook confirmed to reprise their roles.^[33] The first script reading took place on May 23, 2018, at Studio Dragon in Sangam-dong, Seoul, South Korea.^[34] During the press conference of the second season, director Lee Seung-young shared that the season would have 12 episodes as the writer wrote season 2 with season 3 in mind.^[35]

In September 2018, OCN officially confirmed a third season scheduled to be broadcast in the first half of 2019.^[36] It was later announced that both Lee Ha-na and Lee Jin-wook had confirmed to reprise their roles.^[33] The first script reading took place in February 2019 at Studio Dragon in Sangam-dong, Seoul, South Korea.^[15]

Music

Season 4edit

Part 1edit

Part 2edit

Part 3edit

Part 4edit

Part 5edit

Receptionedit

OCN announced that the VOD rights for “Voice” were sold to 56 countries including the United States, Canada, France, Switzerland, Hong Kong, Singapore, and more.^[42][43]

Controversyedit

Halfway airing through the series, the drama was submitted for Korea's censorship board review due to viewers' complaints of it showing excessive violence.^[44][45] It was subsequently issued an advisory warning.^[46] OCN then changed its viewing rating from the original of 15+ to 19+ for episodes 11, 12 and 16 in order to make the story as realistic as possible.^[47][48]

Viewershipedit

Ratings for the first season set new records for OCN dramas when it aired in South Korea, proving to be a hit among viewers. It is one of the highest rated dramas in Korean cable television history and ranked first among cable TV dramas for many consecutive weeks.^[49][50][51]

Upon its premiere, the second season set the record for the highest premiere rating of an OCN television series.^[52] Despite its shorter run, the second season surpassed the first season's ratings and eventually became the highest-rated OCN television series, breaking viewership records previously held by Tunnel (2017).^[53]

Voice : South Korea viewers per episode (millions)

Graphs are unavailable due to technical issues. There is more info on Phabricator and on MediaWiki.org.

Season		Episode number																Average
		1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16
	2	1.128	1.362	1.388	1.501	1.502	1.620	0.652	1.499	1.289	1.816	1.650	1.957	–				1.447
	3	0.876	1.380	1.064	1.192	1.006	1.438	1.092	1.180	1.079	1.220	0.939	1.177	1.012	1.271	1.060	1.534	1.158
	4	0.777	0.915	0.878	0.998	0.955	1.054	0.987	0.994	0.938	1.113	1.027	0.920	0.930	1.251	–		0.981

Source: Audience measurement performed nationwide by Nielsen Media Research.^[54]

Season 1edit