|“||No such floor kiddo.||”|
He first appears when Percy returns the Master Bolt to Zeus. At first, he appears bored and denies that there is a 600th floor, but when Percy shows him the Master Bolt, he fumbles for his key card and tells him to insert it in the security slot.
He appears again when the Demigod Army tries to go up to Olympus. Again, he says there's no 600th floor, but when Percy says that "Forty demigods attract an awful lot of monsters. You really want us hanging out in your lobby?" The security guard hits a buzzer and the security gates swing open. Later, when Kronos enters the lobby, the guard is gone.
He has pale blue eyes and a bald head.