What is the last name of Monsters, Inc. CEO Henry J. Waternoose III?

The last name of Monsters, Inc. CEO Henry J. Waternoose III is Waternoose. He is the elderly, crab-like executive who leads the company during its dependence on children's screams.

Waternoose presents himself as a concerned businessman trying to solve Monstropolis's declining energy production. He tells Sulley that the company has been passed down through his family for three generations, connecting his leadership to Monsters, Inc.'s long corporate history. His position gives him authority over the factory, its scarers, and the company’s response to the energy crisis.

The major twist is that Waternoose is secretly working with Randall Boggs. He supports Randall's plan to use a Scream Extractor on human children, believing extreme measures are necessary to preserve the company. Waternoose is exposed when Sulley tricks him into revealing the conspiracy in a scare simulation room, and the CDA arrests him. “Boggs” is Randall's surname, not Waternoose's; “Henry J.” is Waternoose's given-name and middle-initial combination.