Katsuhiro Tokuishi (德石勝大, born 16 October in Kagoshima Prefecture) is a Japanese voice actor who provides voices for the Japanese narration of Thomas & Friends.
- Ryan (Season 20 - present)
- The Postman
- Douglas' fireman (Love Me Tender)
- Some Rail Workers (Sodor's Legend of the Lost Treasure)
- A Shunter (The Way She Does It)
- The Woodsmen
- Some Passengers (Springtime for Diesel)
- Knapford Station Speaker (Pouty James and The Railcar and the Coaches)
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