Kōichi Yamadera (山寺 宏一 Yamadera Kōichi, born June 17, 1961) is a Japanese voice actor, actor, tarento, narrator, master of ceremonies, and impressionist from Shiogama, Miyagi Prefecture.

He has dubbed over the voices of numerous Disney characters into Japanese, including Donald DuckRoger Rabbit, Beast, Genie, Mushu, Stitch, and Sebastian.

He also provided the Japanese voices of Bert and Mister Dawes Senior in Mary Poppins, Jim Evers in The Haunted Mansion, Ebenezer Scrooge, The Ghost of Christmas Past, and The Ghost of Christmas Present in A Christmas Carol, Mike the Microphone in House of Mouse, Ralph in Wreck-It Ralph, Leroy in Leroy and Stitch, Burger Beagle and Bebop Beagle in DuckTales, and Kermit the Frog (Bob Cratchit) in The Muppet Christmas Carol.

He was considered for the role of Sheriff Woody in the Japanese dub of Toy Story before Toshiaki Karasawa (Minna no Ie) was cast.

See also