Mangosuthu is the principal of United Nations International School. He is African and can be sarcastic and scornful, often ending his remarks with a loud, bellowing laugh. He is known for making numerous yet ridiculous puns. In "A Day at the Races and a Night at the Opera", he comments on the track-and-field day as: "Like the real UN, there was a lot of heated gibberish but nothing was accomplished, and we send the bill to Uncle Sam." Also in "From Chunk to Hunk", he makes a pun on a video of President Clinton falling through his floor: "I'm sure we all appreciate President Clinton's 'groundbreaking' message."
