John Ratzenberger (born April 6, 1947, 66 years old) is an American actor who provided voices in Monsters, Inc. He has had a role in every Pixar film to date, such as Hamm in the "Toy Story" trilogy, P.T. Flea and the Guy in the Bug Bar in "A Bug's Life", a moonfish in Finding Nemo, The Underminer in "The Incredibles", Mustafa in "Ratatouille", John in "WALL-E", Mack in the "Cars" series, and Gordon in "Brave". He has had live-action roles in "Determination of Death", "All In", and "What If..."
- His full name is John Deszo Ratzenberger.