Hello Monster
A top detective is reunited with a childhood friend who has since become a leading criminal profiler. Can they join forces to stop a serial killer?
Where to watch Hello Monster in United States
Can I watch Hello Monster in United States? Yes — you can stream Hello Monster in United States on Rakuten Viki.
Rakuten VikiClick a service to open Hello Monster there. Availability last verified on September 30, 2026.
Where is Hello Monster streaming around the world?
| Country | Streaming on | Rent / Buy |
|---|---|---|
| United States | Rakuten Viki | — |
| Canada | Rakuten Viki | — |
| Germany | Rakuten Viki | — |
| Japan | Amazon Prime Video, Disney Plus, U-NEXT, Amazon Prime Video with Ads | — |
| South Korea | wavve, Watcha, TVING | — |
About Hello Monster
Hello Monster is a 2015 Korean-language mystery and drama series created by Kwon Ki-young. The cast is led by Seo In-guk, Jang Na-ra, Park Bo-gum. It spans 1 season and 16 episodes and has concluded. Viewers rate it 7.3/10 across 100 ratings. In United States, it is currently streaming on Rakuten Viki.
Hello Monster was produced by CJ ENM and made in South Korea. It was first aired on June 22, 2015.
- Created by
- Kwon Ki-young
- Writers
- Kwon Ki-young
- First aired
- June 22, 2015
- Last aired
- August 11, 2015
- Original language
- Korean
- Status
- Ended
- Seasons
- 1 (16 episodes)
- Network
- KBS2
- Country
- South Korea
- Production
- CJ ENM
Hello Monster cast & crew
Hello Monster was created by Kwon Ki-young and written by Kwon Ki-young.
The cast features Seo In-guk as Lee Hyun, Jang Na-ra as Cha Ji-an, Park Bo-gum as Jung Sun-ho/Lee Min, Lee Chun-hee as Kang Eun-hyuk, Choi Won-young as Lee Joon-ho/Lee Joon-yeong, and Im Ji-eun as Hyun Ji-soo.
Behind the camera, it was produced by Kim Jin-won.
Is Hello Monster worth watching?
Hello Monster holds an audience score of 7.3/10 from 129 ratings, marking it as well-reviewed mystery series.
With 1 season and 16 episodes, it's a meaty weekend watch.
If you enjoy mystery and drama, Hello Monster is worth a place on your watchlist.
How and where to watch Hello Monster
In United States, you can stream Hello Monster on Rakuten Viki. Click any service above to open it directly.
Streaming rights change country by country and month by month, so the options above reflect United States today — switch your country at the top of the where-to-watch section to see availability elsewhere.
Rate & review
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Cast of Hello Monster
Seo In-guk
Lee Hyun
Jang Na-ra
Cha Ji-an
Park Bo-gum
Jung Sun-ho/Lee Min
Lee Chun-hee
Kang Eun-hyuk
Choi Won-young
Lee Joon-ho/Lee Joon-yeong
Im Ji-eun
Hyun Ji-soo
Min Sung-wook
Son Myung-woo
Kim Jae-young
Min Seung-Joo
Jun Kwang-ryul
Lee Joong-Min
Son Seung-won
Choi Eun-Bok
Hello Monster — FAQs
▸Where can I watch Hello Monster in United States?
Hello Monster is streaming on Rakuten Viki in United States.
▸Is Hello Monster on Rakuten Viki?
Yes — Hello Monster is currently available on Rakuten Viki in United States.
▸What language is Hello Monster in?
Hello Monster is originally in Korean. Subtitle and dub options vary by streaming service.
▸How many seasons of Hello Monster are there?
Hello Monster has 1 season with 16 episodes in total.
▸What is Hello Monster rated?
It holds a 7.3/10 audience score from 129 ratings.
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