James Sie is an American voice actor. He has provided voices for numerous animated television series, including Danny Phantom as Kwan, King of the Hill, Jackie Chan Adventures as Shendu and animated Jackie Chan, Chen Lin in W.I.T.C.H., and Marvel: Ultimate Alliance as Fin Fang Foom and Radioactive Man. He provided the voices of the cabbage merchant, Oyaji, and additional characters in Avatar: The Last Airbender, and later voiced Lau Gan-Lan in The Legend of Korra.
Sie starred on-camera, opposite Suzy Nakamura in the 1997 independent film, Strawberry Fields, directed by Rea Tajiri.
Sie wrote and performed the autobiographical one-person stage show, Talking With My Hands in 1999, about growing up in a Chinese/Italian household.
Sie voiced the main antagonist Dennis Isenberg from Capcom's video game Lost Planet: Extreme Condition and plays various characters in its sequels. Sie is also the voice of antagonist Eddy Raja in Uncharted: Drake's Fortune and is part of the cast of Metal Gear Solid 4: Guns of The Patriots providing his voice as Jonathan, a hulking soldier who helped Solid Snake.