Undercover High School Facts, FAQ & Common Questions
2025 · MBC · Status: Ended · Rated: Not Rated
Frequently Asked Questions About Undercover High School
Direct, verified answers to the most common queries regarding episodes, renewals, watch order, and streaming availability.
How many seasons and episodes does Undercover High School have?
Undercover High School has 1 season and 12 total episodes, spanning from its premiere on February 21, 2025 to March 29, 2025.
Is Undercover High School renewed, ended, or canceled?
Undercover High School has concluded its run and is officially ended.
How long does it take to binge watch Undercover High School?
It takes 13h 38m (818 minutes) to watch the complete run of Undercover High School. At a standard pace of 2 hours per day, you will finish the entire series in approximately 7 days. Possible with dedication! Finishing this 13.6-hour series over Saturday and Sunday requires around 6.8 hours of viewing each day.
What is the highest-rated episode of Undercover High School?
The highest-rated episode is Season 1, Episode 9 ("The Mathematics Teacher"), which holds an outstanding rating of 9/10 based on 4 audience ratings.
Where can you stream or watch Undercover High School?
Undercover High School is available for streaming on Rakuten Viki, OnDemandKorea, Kocowa Amazon Channel, Kocowa. Availability may vary by regional territory, subscription tier, and digital purchase availability.
What is the official age rating for Undercover High School?
Undercover High School has an official content rating of Not Rated.
Who are the lead actors in Undercover High School?
The primary ensemble cast includes Seo Kang-joon as Jeong Hae-sung (age 32), Jin Ki-joo as Oh Su-ah (age 37), Kim Shin-rock as Seo Myung-ju (age 45), Kim Min-ju as Lee Ye-na (age 25).
Ensemble Cast & Current Ages
Lead cast members, their character identities, and current ages calculated from official biographical records:
| Actor | Character | Current Age |
|---|---|---|
| Seo Kang-joon | Jeong Hae-sung | 32 |
| Jin Ki-joo | Oh Su-ah | 37 |
| Kim Shin-rock | Seo Myung-ju | 45 |
| Kim Min-ju | Lee Ye-na | 25 |
| Yoon Ga-i | Park Mi-jung | 26 |
| Kim Young-ah | Im Chung-ha | 51 |
| Lee Hyun So | Han Seung-jae | 27 |
| Yun Chae-bin | Yun Chae-rin | 25 |
Editorial Verification & Sources
All production facts, air dates, cast credentials, and streaming metadata for Undercover High School are compiled from official broadcaster archives, TMDB, and Wikidata records. Last verified on September 25, 2026.