
Kim Si-Ah
Actor · Born May 6, 2008 (18) · South Korea
Kim Sia (born May 6, 2008) is a South Korean actress. She had notable roles in Miss Baek (2018), Ashfall (2019), Kingdom: Ashin of the North (2021) The Silent Sea (2021) and Sweet Home (2023).
Biography from TMDB.
- May 6, 2008 (18)
- South Korea
- Actor
- 14 on Motif · 19 credits in all
What are Kim Si-Ah's films like?
Across their 8 Motif titles with a thematic analysis, their films lean Bonds and Survival.
Themes
What they feel like to watch
Ironic 0 · Wry 0 · Earnest 5
Light 0 · Serious 2 · Dark 3
A split, not a type: Grounded 2 · Stylized 1 · Heightened 2
Gentle 0 · Charged 0 · Intense 5
Steady 0 · Shifting 5 · Whiplash 0
Straight-faced 5 · Some laughs 0 · Funny 0
Slow burn 0 · Even-paced 5 · Relentless 0
Casual 0 · Engaged 4 · Full focus 1
Easy watch 0 · Affecting 0 · Heavy 5
Resolved 3 · Open-ended 2 · Ambiguous 0
Roles they play
- Heraldas Ji-eun in Miss Baek (2018)
- Allyas Gil Jae-yeong in Kill Boksoon (2023)
- Threshold guardianas Do Hye Ryeong in If Wishes Could Kill (2026)
- Shapeshifteras Dong Joo in Portrait of a Family (2026)
Moods and endings
- Bittersweet6
- Ambiguous2
AI-generated from each title's plot synopsis and cast list, with extra plot summaries, reviews and Parents Guide notes for titles the model may not know, and the model's own knowledge of the ones it recognizes. Only analyzed titles count, so this covers part of the filmography; the feel axes count films only for now.
Where can I watch Kim Si-Ah's films?
As of October 24, 2026, 12 of their 14 Motif titles stream on a subscription or free service, most on Netflix (7).
Subscription and free streaming for Kim Si-Ah's titles on Motif; rent and buy are not counted. Titles are listed by Midcredits score, highest first, at most 12 per service; a dashed chip is a producer credit or a minor one, such as a thanks. A service opens the browse page, which counts movies only, so its number can differ.
Filmography
19 credits, 14 with a Motif page; 1 appearance as themselves is hidden until asked for.

Reawaken Man: The Red(2026)
Midcredits score: 66th percentile of all films (provisional, few ratings)
Portrait of a Family(2026)
Midcredits score: 66th percentile of all films (provisional, few ratings)
Summer's Camera (not in the Motif catalog yet)(2026)

If Wishes Could Kill(2026)
Midcredits score: 69th percentile of all shows
Walking on Thin Ice(2025)
Midcredits score: 67th percentile of all shows
Good News(2025)
Midcredits score: 79th percentile of all films
See You in My 19th Life(2023)
Midcredits score: 62nd percentile of all shows
Kill Boksoon(2023)
Midcredits score: 74th percentile of all films
The Silent Sea(2021)
Midcredits score: 53rd percentile of all shows
Midcredits score: 81st percentile of all films
Sweet Home(2020)
Midcredits score: 73rd percentile of all shows
The Closet(2020)
Midcredits score: 38th percentile of all films
Ashfall(2019)
Midcredits score: 54th percentile of all films
The House of Us (not in the Motif catalog yet)(2019)

Perfume(2019)
Midcredits score: 44th percentile of all shows
Miss Baek(2018)
Midcredits score: 79th percentile of all filmsNight on Earth (not in the Motif catalog yet)
Yeto (not in the Motif catalog yet)
이 밤의 끝을 잡고 (not in the Motif catalog yet)
Career shape
Star power in the 93rd percentile of 239,109 people with a billed film role, over a full career of 19 titles, 16 of them dated from 2018 to 2026; peak year 2020.

Biggest box office
The Closet (2020)

Highest rated
Kingdom: Ashin of the North (2021)

Most popular right now
If Wishes Could Kill (2026)
Film career
Peak 2020 · at the high point of their film career. Film roles by billing, audience size and rating; 25+ votes. A show carries a single first-air date, so shows are not on the curve.
- 2018Screen debut· Miss Baek
Counts from TMDB across their full career, self appearances out; a title counts in every role they held on it. The ring is the typical Midcredits score (the median percentile) of the role's titles that are on Motif, shown from 5 scored. Billing is TMDB cast order for roles with 25+ votes, billed in the top 30.
How do Kim Si-Ah's films land?
Their typical Motif film has a Midcredits score in the 70th percentile, the median of all 8; across their 5 films with reception data, the typical film sits in the 77th percentile for acclaim.
- 75th and up3
- 50th to 74th9
- 25th to 49th2
Shape of the crowd
9 of their 14 titles are Crowd Pleasers.
- Divisive1
- Cult Classic1
- Crowd Pleaser9
- Broadly Agreed3
Reviewers score the acting 80/100 in their films, across 4 reviewed titles; fans 83, detractors 61. The element that speaks to their work as an actor.
Percentiles are each film's standing among all films on Motif; the typical film is the median, so one outlier cannot drag it. Percentiles and reviewer scores count the films IMDb credits them on, for now; the Midcredits score bands, the shape of the crowd and the two cards count their Motif titles, shows included (a show ranked among shows), appearances as themselves left out. A descriptor is the shape of a title's IMDb rating distribution against the catalog; "most divisive" needs a spread wider than half of all titles, and a card names only a principal credit: a craft role, and on a show a crew role or a run of episodes, never a courtesy credit or a one-off guest spot.
Is Kim Si-Ah's work okay for kids?
Across a limited sample of up to 3 Motif titles with content scores.
Severity 0–100 from the Content Guide. Categories with under 10 votes on a title are not counted.
Who does Kim Si-Ah work with?
People who share at least 2 of Kim Si-Ah's Motif titles, grouped by what they did on them; Lee Ji-won shares the most, 2.
Directors
- Lee Ji-wonShared titles: Portrait of a Family (2026), Miss Baek (2018)See all 2 shared titles with Lee Ji-won

Actors
- Kim Sun-youngShared titles: Portrait of a Family (2026), Miss Baek (2018)See all 2 shared titles with Kim Sun-young

- Koo Kyo-hwanShared titles: Kill Boksoon (2023), Kingdom: Ashin of the North (2021)See all 2 shared titles with Koo Kyo-hwan
