From Muppet Wiki

Dov Reiser is an Israeli voice actor who dubbed Cookie Monster into Hebrew on Rechov Sumsum. For television airings of Shalom Sesame in Israel, Reiser also dubbed Itzhak Perlman.

Reiser is the Hebrew voice of Robert Hardy in the Harry Potter films. His animation voice credits include dubbing various American, Japanese, and French series, including OxTales, Babar, Alfred Joducus Kwak, DragonBall Z, Care Bears, The Little Mermaid, and Once Upon a Time... Life. He appeared on-camera in the Steven Spielberg film Munich.