On the Verge of Insanity () 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.
Synopsis
It follows the story of middle-aged office workers struggling to survive in a turbulent workplace.
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. 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. Lee Sang-yeob as Han Se-kwon, the development team leader who is related to the company group's owner. Kim Ga-eun as Seo Na-ri, the deputy of the planning team.
Supporting
People in research building
Kim Nam-hee as Shin Han-soo
Ahn Nae-sang as Noh Byung-guk
as Gong Jung-pil
Park Won-sang as Peng Su-gon
as Ki Jung-hyun
Baek Min-hyun as Ahn Jun-soo
as Go Jung-sik
as Pyun Dong-il
People in office building
Cha Chung-hwa as Kim Jung-ah
as So Sang-wook
as Gye Bo-ram
as Bae Jung-tak
as Oh Jae-il
People in headquarters
as Han Seung-gi
Kang Ju-sang as Noh Jae-yeol
Kang Yeon-woo as Park Hoon-jung
Extended
Jung Sung-hoon as Yoon Gi-joon
Kim Yoon-seo as Jung Sung-eun
Kim Ye-eun as Oh Hye-yeon
Jung Yeo-jun as Gil Chang-hwan
Yoo Jung-rae as Eo Hae-mi
Kim Seon-ah as Kim Seul-ah
Oh Yu-na as Heo Ga-young
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.