On the Verge of Insanity

On the Verge of Insanity^[3] (Korean: 미치지 않고서야; RR: Michiji ankoseoya) is a 2021 South Korean television series starring Jung Jae-young, Moon So-ri, Lee Sang-yeob and Kim Ga-eun. It aired on MBC TV from June 23 to August 26, 2021 for 16 episodes.^[4]

On the Verge of Insanity
Promotional poster
Hangul	미치지 않고서야
Lit.	No One but a Madman
RR	Michiji ankoseoya
MR	Mich'iji ank'osŏya
Genre	Comedy[1] Workplace[1]
Created by	Kim Ho-jun[2]
Written by	Jung Do-yoon[2]
Directed by	Choi Jung-in[2]
Starring	Jung Jae-young Moon So-ri Lee Sang-yeob Kim Ga-eun
Composer	Park Se-joon
Country of origin	South Korea
Original language	Korean
No. of episodes	16[1]
Production
Producers	Kim Jong-sik Kim Chang-mi
Running time	70 minutes[1]
Production company	IWill Media[2]
Original release
Network	MBC TV
Release	June 23 (2021-06-23) – August 26, 2021 (2021-08-26)

Synopsis

It follows the story of middle-aged office workers struggling to survive in a turbulent workplace.^[5]

Cast

Main

• Jung Jae-young as Choi Ban-seok, a developer in the home appliance division of Hanmyung Electronics. Although he is a veteran engineer, he ends up joining the HR team after a series of ups and downs.^[5]
• Moon So-ri as Dang Ja-young, the workaholic head of HR team who is respected by her juniors for her outstanding leadership and is trusted by her superiors for her mental agility.^[5]
• Lee Sang-yeob as Han Se-kwon, the development team leader who is related to the company group's owner.^[6]
• Kim Ga-eun as Seo Na-ri, the deputy of the planning team.^[7]

Supporting

People in research building

• Kim Nam-hee as Shin Han-soo^[8]
• Ahn Nae-sang as Noh Byung-guk^[9]
• Park Sung-geun [ko] as Gong Jung-pil^[9]
• Park Won-sang as Peng Su-gon^[9]
• Dong Hyun-bae [ko] as Ki Jung-hyun
• Baek Min-hyun as Ahn Jun-soo^[10]
• Kim Joong-ki [ko] as Go Jung-sik^[9]
• Oh Yong [ko] as Pyun Dong-il

People in office building

• Cha Chung-hwa as Kim Jung-ah^[9]
• Im Hyun-soo [ko] as So Sang-wook^[11]
• Cheon Hee-joo [ko] as Gye Bo-ram^[12]
• Kim Jin-ho [ko] as Bae Jung-tak
• Lim Il-gyu [ko] as Oh Jae-il^[13]

People in headquarters

• Jo Bok-rae as Han Seung-gi^[9]
• Kang Ju-sang as Noh Jae-yeol
• Kang Yeon-woo as Park Hoon-jung

Extended

• Jung Sung-hoon as Yoon Gi-joon^[13]
• Kim Yoon-seo as Jung Sung-eun^[14]
• Kim Ye-eun as Oh Hye-yeon^[15]
• Jung Yeo-jun as Gil Chang-hwan^[16]
• Yoo Jung-rae as Eo Hae-mi^[17]
• Kim Seon-ah as Kim Seul-ah^[18]
• Oh Yu-na as Heo Ga-young^[19]

Production

The first script reading of the cast was held at Changwon International Hotel. The series is set in South Gyeongsang Province and cast a large number of locals from that area in minor roles.^[20]