Watch 21 Days Theory for Free in 123Movies
21 Days Theory (2022) – Official Series Trailer, Cast & Seasons
21 Days Theory at a Glance
21 Days Theory is a 2022 drama TV series created by Choi Sittichai Chutsiri, starring Patsapon Jansuppakitkun, Khunakorn Sunantham and Prat Itthichaicharoen. It first aired on August 7, 2022 on YouTube and has 1 season and 4 episodes. The series has ended, with its last episode airing on August 28, 2022, and it is rated 7.0/10 by TMDB users across 8 votes.
Watch the official 21 Days Theory trailer for free in 123Movies below.
1080p HD • Free YouTube Stream
Seasons & Episode Catalog (1)
Season 1
4 Episodes • 2022
Where “21 Days Theory” Fits in the 123Movies Catalog
Frequently Asked Questions About 21 Days Theory
When did 21 Days Theory first air?
21 Days Theory premiered on August 7, 2022 on YouTube.
How many seasons does 21 Days Theory have?
21 Days Theory has 1 season with 4 episodes in total, according to TMDB.
Is 21 Days Theory still running?
No. 21 Days Theory has ended. Its final episode aired on August 28, 2022.
Who stars in 21 Days Theory?
21 Days Theory stars Patsapon Jansuppakitkun as X, Khunakorn Sunantham as Q, Prat Itthichaicharoen as Toy and Jirayu Sahguansin as Frank. The cast also includes Warisara Jitpreedasakul, Pischapron Ketawattananon and Sarawut Siriphet.
Who created 21 Days Theory?
21 Days Theory was created by Choi Sittichai Chutsiri.
What network is 21 Days Theory on?
21 Days Theory aired on YouTube.
How long are 21 Days Theory episodes?
Episodes of 21 Days Theory run about 38 minutes, according to TMDB.
What genre is 21 Days Theory?
21 Days Theory is listed on TMDB as a drama series.
What is the TMDB score of 21 Days Theory?
On TMDB it has an average user score of 7.0/10 from 8 votes.
Where can I watch the trailer for 21 Days Theory for free?
You can watch the trailer for 21 Days Theory, "21วัน มีฉันมีเธอ [Official Teaser]", for free on this 123Movies page. It is embedded from YouTube.
What shows are similar to 21 Days Theory?
Series TMDB recommends alongside 21 Days Theory include Class Crush Crisis (2026), One Tree Hill (2003), Heated Rivalry (2025), The Fosters (2013) and Heartstopper (2022).
Can I watch full episodes of 21 Days Theory on 123Movies?
No. 123Movies only shows official trailers and series information. Full episodes are not hosted or linked on this site.
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