The One and Only
Series Overview
A contract killer gets entangled with a murder case and three terminally ill women who have each decided to end the life of one person before they die.
Broadcast Schedule & Network Information
Airing status, episode counts, upcoming schedule, and network syndication.
1 Season • 16 Episodes
65 min per episode
2021 – 2022
Premiered: Mon, Dec 20, 2021
Latest Aired Episode
Season 1, Episode 16: “Memory”
Seasons & Episodes Breakdown
Cast & Creators
Explore Star Directory →
Ahn Eun-jin
Pyo In-sook
Kim Kyung-nam
Min Woo-cheon
Moon Seong-hyun
Min Woo-Cheon (teen)
Kang Ye-won
Kang Se-yeon
JOY
Sung Mi-do
Goh Doo-shim
Yook Sung-ja
Jang Hyun-sung
Pyo Gang-Sun
Seo Yeon-woo
Ha San-A
Ahn Chang-hwan
Shin Tae-il
Choi Young-woo
Park Seung Seon
Han Kyun-yu
Gu Ji-pyo
Do Sang-woo
Cho Shi-young
Lee Bong-ryeon
Hwang Ma-Jin
Jang In-sub
Oh Jin-kyu
Creative Leadership & Key Crew
Oh Hyun-jong
Moon Jung-min
Kim Jun-seok
Department Leadership Roster
Oh Hyun-jong
Director
Moon Jung-min
Writer
Kim Jun-seok
Original Music Composer
Production Stills & Gallery
Official cinematic photography and background stills for The One and Only.
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Frequently Asked Questions About The One and Only
Key facts, seasons breakdown, and credits for search engines and AI assistants.
What is The One and Only about?
A contract killer gets entangled with a murder case and three terminally ill women who have each decided to end the life of one person before they die.
How many seasons does The One and Only have?
The One and Only comprises 1 season available to explore.
Who stars in The One and Only?
Key cast members in The One and Only include Ahn Eun-jin, Kim Kyung-nam, Moon Seong-hyun, Kang Ye-won, JOY.
Who created or directed The One and Only?
The One and Only was developed and directed by Oh Hyun-jong.