|Born:||January 10, 1989|
|Years active:||2004 - now|
Hideo Ishiguro (石黒英雄 Ishiguro Hideo) is a Japanese actor. He had the role as Kai from Kamen Rider Den-O and later the role of Gai Kurenai, the human form of Ultraman Orb in the same name series, as well as Orb's voice actor.
- Ultraman Orb - Gai Kurenai/Voice of Ultraman Orb.
- Ultraman Orb THE ORIGIN SAGA - Gai/Voice of Ultraman Orb
- Ultraman Orb The Movie: Lend Me The Power of Bonds! - Gai Kurenai/Voice of Ultraman Orb.
- Hideo's favorite Ultramen are Ultraseven and Ultraman Taro (he shares this with Mamoru Miyano).
- Hideo and Takaya Aoyagi are friends on Twitter.