Yuhki Satoh (佐藤佑暉 Satō Yūki), commonly called as Yuki Sato is a voice actor that affiliated to Aoni Production. His stage name is Hiroyuki Sato (佐藤浩之 Satō Hiroyuki).
He is the second voice actor of Ultraman Cosmos, and the one that provided his "high-pitch" grunts. Although no longer the voice in charge after the third movie, his grunt were still kept and reused in most of Cosmos' other appearance, while the Ultra is currently voiced by Taiyo Sugiura, the actor of Musashi Haruno, Cosmos' host.
- Ultraman Cosmos - Voice of Ultraman Cosmos
- Ultraman Cosmos Vs Ultraman Justice: The Final Battle - Voice of Ultraman Cosmos
Stock Grunts for Ultraman Cosmos
- Legend of the Galactic Heroes - Voice of Sanders
- Transformers Victory - Voice of Mach
- Yanki Reppu-Tai - Voice of Takizawa
- Yagami-kun no Katei no Jijō - Voice of Yuzo Miyake
- 3x3 Eyes - Voice of Tatsuya
- Mobile Suit Gundam F91 - Voice of Kane Song
- Aoki Densetsu Shoot! - Voice of Masazi Hattori
- Sailor Moon - Voice of Motoki Furuhata
- Rokudenashi Blues - Voice of Shigeru Hiroshi
- Kinnikuman Nisei - Voices of Rikishi-man, Apollon-man