Ko Seong-il ( Korean: 고성일) is a South Korean voice actor who joined the Munhwa Broadcasting Corporation's Voice Acting Division in 1999.
- Ojamajo Doremi (Korea TV EDition, MBC)
- Bikkuriman (Bumerang Fighter, Korea TV Edition, MBC)
- Submarine 707 (Korea TV Edition, MBC)
- The Penguins of Madagascar (Kowalski)
- VeggieTales (Pa Grape)
- History 50 (MBC)
- Rabihem Polis (MBC)
- Redmoon (MBC)
- Masca (MBC)
- Hotel Africa (MBC)
- Hammerboy (Character Plan)
- Crayon Shin Chan (Korea TV Edition, MBC)
- Antz (Korea TV Edition, MBC)
- MBC Voice Acting Division Ko Seong Il Blog (in Korean)
- Ad Sound Ko Seong Il Blog (in Korean)
 | This article about a South Korean actor is a stub. You can help Wikipedia by expanding it. |
 | This article about a Korean voice actor is a stub. You can help Wikipedia by expanding it. |