
Yoku Shioya (塩屋 翼, Shioya Yoku, June 24, 1958) is a Japanese voice actor, actor, and sound director. He was born in Kagoshima prefecture, but grew up in Kawasaki City, Kanagawa Prefecture from the age of five. His real name is Tsubasa Shioya (written with the same kanji). His older brother is voice actor Kōzō Shioya. He belongs to Pro-Fit.
He made his debut as a child actor when he was eight years old, and has been active as a voice actor since he was 14 years old, debuting in Umi no Triton (1972). He has done some voice directing in such anime as Basilisk: The Kouga Ninja Scrolls. Since then, he has been active as a sound director in omnibus promotion, and is currently working on numerous works as a sound director for Sound Wing.

Demon Slayer: Kimetsu no Yaiba Infinity Castle
2025 · as (voice)

Perfect Blue
1998 · as Takao Shibuya (voice)

Mobile Suit Gundam F91
1991 · as Birgit Pirjo

Slam Dunk 2: National Tournement
1994 · as Ryota Miyagi (voice)

Mobile Suit Gundam I
1981 · as Marker (voice)

Inferious Interplanetary War Chronicle - Condition Green
1991 · as Ralph Eheart (voice)

Urusei Yatsura: Beautiful Dreamer
1984

Space Runaway Ideon: Be Invoked
1982 · as Cosmo (voice)

JoJo's Bizarre Adventure Re-Edited Vol.1
2014 · as Will Anthonio Zeppeli (voice)

Odin: Starlight Mutiny
1985 · as Bōichi Nekota

Twilight of the Cockroaches
1987 · as Cohen (voice)

Mobile Suit Gundam 0083: Afterglow of Zeon
1992 · as Nick Orville (voice)

Toward the Terra
1980 · as Alfredo (voice)

The Door Into Summer
1981 · as Arman (voice)

Mr. Pen Pen
1986 · as Freddie (voice)

Transformers: Scramble City
1986 · as Bumblebee / Fireflight (voice)

The Monster of Frankenstein
1981 · as Phillip (voice)

Space Runaway Ideon: Contact
1982 · as Kosumo Yuki (voice)