Watch The One and Only for Free in 123Movies
The One and Only (2021) – Official Series Trailer, Cast & Seasons
The One and Only at a Glance
The One and Only is a 2021 drama TV series created by Moon Jung-min, starring Ahn Eun-jin, Kim Kyung-nam and Moon Seong-hyun. It first aired on December 20, 2021 on JTBC and has 1 season and 16 episodes. The series has ended, with its last episode airing on February 8, 2022, and it is rated 6.8/10 by TMDB users across 24 votes.
Official Trailer Coming Soon
An official trailer for “The One and Only” has not been indexed yet from verified studio channels.
Search Clips on YouTubeSeasons & Episode Catalog (1)
Season 1
16 Episodes • 2021
Where “The One and Only” Fits in the 123Movies Catalog
Frequently Asked Questions About The One and Only
When did The One and Only first air?
The One and Only premiered on December 20, 2021 on JTBC.
How many seasons does The One and Only have?
The One and Only has 1 season with 16 episodes in total, according to TMDB.
Is The One and Only still running?
No. The One and Only has ended. Its final episode aired on February 8, 2022.
Who stars in The One and Only?
The One and Only stars Ahn Eun-jin as Pyo In-sook, Kim Kyung-nam as Min Woo-cheon, Moon Seong-hyun as Min Woo-Cheon (teen) and Kang Ye-won as Kang Se-yeon. The cast also includes JOY, Goh Doo-shim, Jang Hyun-sung and Seo Yeon-woo.
Who created The One and Only?
The One and Only was created by Moon Jung-min.
What network is The One and Only on?
The One and Only aired on JTBC.
How long are The One and Only episodes?
Episodes of The One and Only run about 1 hour 5 minutes, according to TMDB.
What genre is The One and Only?
The One and Only is listed on TMDB as a drama series.
What is the TMDB score of The One and Only?
On TMDB it has an average user score of 6.8/10 from 24 votes.
What shows are similar to The One and Only?
Series TMDB recommends alongside The One and Only include HIS & HERS (2026), Mare of Easttown (2021), The Staircase (2022), The Beast in Me (2025) and Good Girls (2018).
Can I watch full episodes of The One and Only on 123Movies?
No. 123Movies only shows official trailers and series information. Full episodes are not hosted or linked on this site.
HIS & HERS
Mare of Easttown
The Staircase
The Beast in Me
Good Girls
Grotesquerie
Servant
56 Days
Ambitions
Why Didn't They Ask Evans?
The Undoing
