Portrait of Koki Mitani

Writing

Koki Mitani

Career

Active from 1990 to 2026, busiest in 1996 with 7 main titles.

Average score
GoodWatch score68/100
Highest rated
Poster for Welcome Back, Mr. McDonald
Welcome Back, Mr. McDonald
GoodWatch score85/100

What stands out

Compared with the average well-known movie, over 18 of their titles. Select a trait to filter titles.

Energy: 3.5 versus catalog average 4.6EnergyHeart: 4.2 versus catalog average 4.2HeartHumor: 3.7 versus catalog average 2.6HumorWorld: 6.3 versus catalog average 5.6WorldCraft: 6.1 versus catalog average 5.3CraftStyle: 5.9 versus catalog average 5.9Style
Koki Mitani Catalog average

Rarely in their work

  • Violence
    2.3, average 4.1
  • Adrenaline
    3.3, average 4.8
  • Scare
    1.2, average 2.6
  • Spiritual
    0.9, average 2.0

Main genres

Select a genre to see those titles.

Recurring tags

  • Ensemble Cast 6
  • Witty Dialogue 4
  • Japanese Mystery 4
  • Feel-Good 4
  • Character-Driven 4
  • Family Secrets 3
  • Japanese Historical Drama 3
  • Cultural Heritage 3
  • Japanese Comedy 3
  • Slice of Life 3
  • Lighthearted 3
  • Situational Humor 3

Works often with

People in at least two of their main titles.

Movies and TV shows

55
Type
Role
Score
Decade
Genre
Group by

2020s

15 titles · average score 67
いのこりぐみ
いのこりぐみ (2026)

Director, Writer

新宿発8時15分
新宿発8時15分 (2026)

Writer, Director

Oi, Dazai
Oi, Dazai (2025)

Writer, Director

三谷文楽「人形ぎらい」
三谷文楽「人形ぎらい」 (2025)

Writer, Director

蒙古が襲来
蒙古が襲来 (2025)

Writer, Director

All About Suomi
All About Suomi (2024)
GoodWatch score 55

Director, Writer

90 Years Old – So What?
90 Years Old – So What? (2024)

as Taxi driver

The Makanai: Cooking for the Maiko House
The Makanai: Cooking for the Maiko House (2023)
GoodWatch score 82

TV show · as Mitani

Promise of Death
Promise of Death (2021)

Screenplay

What Happened to Our Nest Egg!?
What Happened to Our Nest Egg!? (2021)
GoodWatch score 66

as Moriguchi

劇場の灯を消すな!PARCO劇場編
劇場の灯を消すな!PARCO劇場編 (2020)

Director

Daichi (Social Distancing Version)
Daichi (Social Distancing Version) (2020)

Stage Director, Theatre Play

2010s

11 titles · average score 65
Hit Me Anyone One More Time
Hit Me Anyone One More Time (2019)
GoodWatch score 65

Screenplay, Director

The Murder of Kuroido
The Murder of Kuroido (2018)

Screenplay

Fuunjitachi ~ Rangaku Kakumei-hen
Fuunjitachi ~ Rangaku Kakumei-hen (2018)

Screenplay

Galaxy Turnpike
Galaxy Turnpike (2015)
GoodWatch score 57

Writer, Director

Murder on the Orient Express
Murder on the Orient Express (2015)
GoodWatch score 68

Screenplay

Airport 2013
Airport 2013 (2014)
GoodWatch score 68

Writer, Director

Jekyll & Hyde & Tears & Liquor
Jekyll & Hyde & Tears & Liquor (2014)

Script, Stage Director

The Kiyosu Conference
The Kiyosu Conference (2013)
GoodWatch score 63

Director, Original Story

A Ghost of a Chance
A Ghost of a Chance (2011)
GoodWatch score 70

Director, Screenplay

A Flawless Concierge
A Flawless Concierge (2011)

as The Film Director

三谷幸喜「short cut」
三谷幸喜「short cut」 (2011)

Director

2000s

17 titles · average score 69
The Three Musketeers
The Three Musketeers (2009)

TV show · as O'Reilly (voice)

The Magic Hour
The Magic Hour (2008)
GoodWatch score 76

Screenplay, Director

Furuhata Chugakusei
Furuhata Chugakusei (2008)

Screenplay

Suite Dreams
Suite Dreams (2006)
GoodWatch score 66

Director, Screenplay

新選組!! 土方歳三 最期の一日
新選組!! 土方歳三 最期の一日 (2006)

Writer

Furuhata Ninzaburo Final: Last Dance
Furuhata Ninzaburo Final: Last Dance (2006)

Writer

Murder of the Inugami Clan
Murder of the Inugami Clan (2006)
GoodWatch score 66

as Nasu Hoteru Shujin

University of Laughs
University of Laughs (2004)
GoodWatch score 78

Original Story, Screenplay

All By His Excellency's Work
All By His Excellency's Work (2004)

Writer

Ryoma's Wife, Her Husband and Her Lover
Ryoma's Wife, Her Husband and Her Lover (2002)

Screenplay, Theatre Play

All About Our House
All About Our House (2001)
GoodWatch score 59

Director, Screenplay

裸にしたい男
裸にしたい男 (2001)

TV show

1990s

12 titles · average score 75
Furuhata Ninzaburo vs SMAP
Furuhata Ninzaburo vs SMAP (1999)

Screenplay

Round About Midnight
Round About Midnight (1999)
GoodWatch score 73

as Man Watching TV

The Terror of Dr. Kuroiwa
The Terror of Dr. Kuroiwa (1999)

Writer

Welcome Back, Mr. McDonald
Welcome Back, Mr. McDonald (1997)
GoodWatch score 85

Director, Screenplay

Warai no Daigaku
Warai no Daigaku (1997)

Screenplay, Original Story

A Brief Parting
A Brief Parting (1996)

Writer

The Disappearance of Furuhata Ninzaburo
The Disappearance of Furuhata Ninzaburo (1996)

Writer

The Laughing Kangaroo
The Laughing Kangaroo (1995)

Writer

The Show Must Go On
The Show Must Go On (1994)

Writer, Director

The Gentle 12
The Gentle 12 (1991)
GoodWatch score 69

Screenplay, Theatre Play

Kodomo, Hoshii Ne
Kodomo, Hoshii Ne (1990)

TV show · as Seiichiro Kuwabara

After All, I Love Cats the Three Onda Sisters’ Great Kyoto Troubles
After All, I Love Cats the Three Onda Sisters’ Great Kyoto Troubles (1990)

Screenplay