Squirrel!

Edward Asner (born November 15, 1929), commonly known as Ed Asner, is an American film, television, stage, and voice actor and former president of the Screen Actors Guild, primarily known for his Emmy Award-winning role as Lou Grant on both The Mary Tyler Moore Show and its spin-off series, Lou Grant. In 2009, he starred as the voice of Carl Fredricksen in Pixar's award-winning animated film, Up...(Wikipedia)

Credits include: Finding Nemo, Monsters, Inc. and Up