Susan Silo (born July 27, 1942) is an American actress who is best known for her work in voice-over roles, such as Wuya in Xiaolin Showdown (2003 -2006), Netti Pisghetti in Curious George (2006 - 2022), Sartana in El Tigre: The Adventures of Manny Rivera (2007 - 2008), and Yin in The Legend of Korra (2014). Silo also made live-action guest appearances in episodes of numerous TV series from the 1960s to the 1990s, including Alfred Hitchcock Presents, Hawaiian Eye, McHale's Navy, Route 66, Gunsmoke, Bonanza, Wagon Train, Have Gun Will Travel, The Many Loves of Dobie Gillis, Sea Hunt, Ripcord, Hazel, Combat!, Batman, The Man from U.N.C.L.E., The Love Boat, L.A. Law and The Wild Wild West.