Miho Okasaki

ActorSound Nov 22 (age 27) Okayama, Japan 2008–2026 (18 year career)

7.2 avg rating

Biography

Miho Okasaki (岡咲美保, Okasaki Miho) is a Japanese voice actress from Okayama Prefecture who is affiliated with I'm Enterprise. She debuted as a voice actress in 2017, playing mostly background roles in anime series, as well as playing some roles in a number of video games. In 2018, she played her first main roles as Miku Nishio in the anime series Ongaku Shōjo and Rimuru Tempest in the anime series That Time I Got Reincarnated as a Slime.

Known For

Film

That Time I Got Reincarnated as a Slime

Rimuru (voice)

Film

Seton Academy: Join the Pack!

Theme Song Performance

Film

That Time I Got Reincarnated as a Slime the Movie: Scarlet Bond

Rimuru (voice)

Film

The Slime Diaries

Rimuru (voice)

Film

Demon Slayer: Kimetsu no Yaiba - Tsuzumi Mansion Arc

Teruko (voice)

Film

Wandering Witch: The Journey of Elaina

Avilia (voice)

Film

My Next Life as a Villainess: All Routes Lead to Doom!

Mary Hunt (voice)

Film

Rascal Does Not Dream of a Knapsack Kid

Kotomi Kano (voice)

Filmography

Acting (54)

Movies (16)

That Time I Got Reincarnated as a Slime the Movie: Tears of the Azure Sea

2026

as Rimuru (voice)

Umamusume: Pretty Derby - Beginning of a New Era

2024

as Aoi Kiryuin (voice)

7.9

Animelo Summer Live 2024 -Stargazer- 9/1

2024

as Hinana Ichikawa

Animelo Summer Live 2024 -Stargazer- 8/31

2024

as Self

Rascal Does Not Dream of a Knapsack Kid

2023

as Kotomi Kano (voice)

7.8

Rascal Does Not Dream of a Sister Venturing Out

2023

as Kotomi Kano (voice)

7.6

My Next Life as a Villainess: All Routes Lead to Doom! The Movie

2023

as Mary Hunt (voice)

6.2

THE IDOLM@STER SHINY COLORS 5thLIVE If I_wings

2023

as Hinana Ichikawa

That Time I Got Reincarnated as a Slime the Movie: Scarlet Bond

2022

as Rimuru (voice)

7.4

Demon Slayer: Kimetsu no Yaiba - Tsuzumi Mansion Arc

2022

as Teruko (voice)

7.4

IDOL bu SHOW Movie

2022

as Mirei "Mirechi" Wakatsuki (voice)

Student Council Staff Members Movie 2

2021

6.1

Knights of Sidonia: Love Woven in the Stars

2021

6.0

THE IDOLM@STER SHINY COLORS 2ndLIVE STEP INTO THE SUNSET SKY

2021

as Hinana Ichikawa

The Magnificent KOTOBUKI: The Movie

2020

as Maria (voice)

6.3

THE IDOLM@STER SHINY COLORS MUSIC DAWN

2020

as Hinana Ichikawa

Television (38)

Champignon Witch

2026

as Merino (voice)

6.3

Medalist

2025

as Seira Shishido (voice)

8.3

Private Tutor to the Duke's Daughter

2025

as Lynne Leinster (voice)

6.7

As a Reincarnated Aristocrat, I'll Use My Appraisal Skill to Rise in the World

2024

as Rosell Kischa (voice)

7.4

Doctor Elise: The Royal Lady with the Lamp

2024

as Mary (voice)

7.5

Jellyfish Can't Swim in the Night

as Mero Seto (voice)

THE NEW GATE

as Yuzuha (voice)

Farming Life in Another World

2023

as Fraulem (voice)

7.5

A Playthrough of a Certain Dude's VRMMO Life

2023

as Milly (voice)

6.3

BLUE LOCK

2022

as Child Meguru Bachira (voice)

8.2

Extreme Hearts

2022

as Saki Kodaka (voice)

4.1

The Dawn of the Witch

2022

as Loux Krystas (voice)

6.2

Tales of Luminaria: The Fateful Crossroad

2022

as Celia Arvier (voice)

86 EIGHTY-SIX

as (voice)

The Slime Diaries

as Rimuru (voice)

Vivy -Fluorite Eye's Song-

2021

as Female staff rookie (voice)

7.9

How a Realist Hero Rebuilt the Kingdom

2021

as Pamille Carol (voice)

7.7

My Next Life as a Villainess: All Routes Lead to Doom!

2020

as Mary Hunt (voice)

7.4

Wandering Witch: The Journey of Elaina

as Avilia (voice)

POKÉTOON

as Purin (voice)

Fruits Basket

as Mai Iwata (voice)

Kaguya-sama: Love Is War

2019

as Girl getting love confession (voice)

8.5

Ahiru no Sora

2019

as Harumi Tominaga (voice)

8.4

Kono Oto Tomare!: Sounds of Life

2019

as Attendee (voice)

7.3

Demon Slayer: Kimetsu no Yaiba

2019

as Teruko (voice)

8.6

The Demon Girl Next Door

2019

as Children (voice)

8.0

Lord El-Melloi II's Case Files {Rail Zeppelin} Grace note

2019

as Yvette L. Lehrman (voice)

6.8

That Time I Got Reincarnated as a Slime

2018

as Rimuru (voice)

8.4

That Time I Got Reincarnated as a Slime

2018

as Narrator (voice)

8.4

Rascal Does Not Dream of Bunny Girl Senpai

2018

as Kotomi Kano (voice)

8.5

Teasing Master Takagi-san

2018

as Suzuki (voice)

8.1

Bloom Into You

2018

as Announcement (voice)

7.7

Pop Team Epic

2018

as Devil's Daughter (voice)

Slow Start

as Girl (voice)

Music Girls

as Miku Nishio (voice)

5.9

Theatre of Darkness: Yamishibai

as Shizuka (voice)

Sword Art Online

as Villager (voice)

A Certain Magical Index

2008

as Citizen (voice)

7.5

Crew (5)

Television (5)

Private Tutor to the Duke's Daughter

2025

Theme Song Performance

6.7

I'm a Noble on the Brink of Ruin, So I Might as Well Try Mastering Magic

2025

Theme Song Performance

6.8

Extreme Hearts

2022

Theme Song Performance

4.1

The Slime Diaries

2021

Theme Song Performance

8.0

Seton Academy: Join the Pack!

2020

Theme Song Performance

8.4