|Born:||January 21, 1959|
|Occupation:||Actor, Voice Actor, Singer, Tarento, and Guitarist|
|Years active:||1979 - present|
|Spouse:||Hiromi Yamamoto (currently married)|
- Ultraman: Towards the Future: Jack Shindo (Japanese Dub)
- Ultraman Tiga: Shin Hayate
- Ultraman Dyna: Shin Hayate
Masaki Kyomoto is married an actress named Hiromi Yamamoto, Taiga Kyomoto is their oldest son.
- Masaki is a close friend to Shingo Yanagisawa, who voices Charles Morgan in the same Ultra Series that Masaki voiced, Towards the Future.
- He used to have an alias called Saeki Ryusuke (冴木 涼介 Saeki Ryōsuke).