Ryosuke Koike

Ryosuke Koike (小池亮介, Koike Ryōsuke) is a Japanese actor. He played Isami Minato, the human host of Ultraman Blu, in Ultraman R/B.

Career[]

He was affiliated with Pacific Voice until December 31, 2022.^[1]

Year	Title	Role	Notes
2018	Ultraman Orb: The Chronicle	Isami Minato	Episode 26 "Delivering Orb's Prayer! - New Heroes Appear!"
	Ultraman R/B	Isami Minato/Ultraman Blu	Voice (Ultraman Blu)
	Ultraman R/B	Blu	Episode 24 "I Am Happy"
	Ultraman Hit Song History: New Generation Chapter	Ultraman Blu	Voice
2019	Ultraman R/B The Movie: Select! The Crystal of Bond	Isami Minato/Ultraman Blu	Voice (Ultraman Blu)
2019	Ultraman New Generation Chronicle	Isami Minato	Episodes 11, 12, 26
2019	Ultra Galaxy Fight: New Generation Heroes	Ultraman Blu	Voice
2020	Ultraman Taiga The Movie: New Generation Climax	Isami Minato/Ultraman Blu	Voice (Ultraman Blu)
2022	Ultra Galaxy Fight: The Destined Crossroad	Ultraman Blu	Voice
2023	Ultraman New Generation Stars	Ultraman Blu	Voice Season 1, episodes 13-14

Year	Title	Role	Notes
2018	Ultraman Festival 2018 Live Stage Part 1	Isami Minato/Ultraman Blu	Stage screen (Isami Minato) Voice (Ultraman Blu)
	Ultraman Festival 2018 Live Stage Part 2	Isami Minato/Ultraman Blu	Stage screen (Isami Minato) Voice (Ultraman Blu)
	Ultraman Stadium Special Show & Talk Event	Isami Minato	^[2]
	Ultra Heroes EXPO 2019 Battle Stage	Isami Minato/Ultraman Blu	Voice (Ultraman Blu)
2019	Ultraman Precious Stage: Dad Is Ultraseven	Ultraman Blu	Voice
	Ultraman Festival 2019 Live Stage Part 2	Ultraman Blu	Voice
	Ultra Heroes EXPO THE LIVE	Isami Minato/Ultraman Blu	Live appearance at Fukuoka and Osaka performances^[3] Voice (Ultraman Blu)
	Ultraman Zero 10th Anniversary: New Generation Heroes Assemble!	Isami Minato	^[4]
2020	Ultra Heroes EXPO 2020 Battle Stage	Isami Minato	January 3 performances^[5]^[6]
2021	Ultra Heroes EXPO THE LIVE: Ultraman Z	Ultraman Blu	Voice Part 1
2021	NEW GENERATION THE LIVE: Ultraman Trigger STAGE 2		Voice
2022	NEW GENERATION THE LIVE: Ultraman Decker STAGE 3		Voice
2023	NEW GENERATION THE LIVE -STARS Edition- TSUBURAYA CONVENTION 2023 SPECIAL STAGE	Isami Minato^[7]	Finale
2025	NEW GENERATION THE LIVE: Stars - Ultraman Zero ～The Beginning Story～	Isami Minato^[7]	TSUBURAYA CONVENTION 2025 performances^[8]

Year	Title	Role	Notes
2018	Nari Kids Park: Ultraman R/B	Ultraman Blu	Voice

Year	Title	Role	Notes
2018	Ultraman R/B DX Kiwami Crystal	Isami Minato	Voice

This section refers to Koike's grunts being reused per stock audio in other Ultraman Series media:

Year	Title	Role	Notes
2019	Ultraman Taiga	Ultraman Blu	Episode 1 "Buddy Go!"

Ryosuke mentioned that one of the challenges of portraying Isami is accurately depicting a 19 year old boy.
His favorite Ultraman is Ultraman Tiga and remembers watching the first three Heisei Ultraman Series in his childhood.
- Additionally, Ultraman Blu is the first to access his air-oriented Wind form, which uses Tiga's R/B Crystal.
His favorite Kaiju is King of Mons due to its incredible strength as it took three Ultras to finish it.