Um Sang-hyun (엄상현, born on 29 December 1971) is a South Korean voice actor who provides voices for the South Korean dub of Thomas and Friends.

He is best know for voicing Po from the "Kung Fu Panda" films, Sparx from "Astro Boy", Jimbo from "Sammy's Great Escape" and Rogi and various characters from "Tayo the Little Bus".


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