Benjamin Krupp, (aliases Mr. Krupp, Mr. Benjamin "Benny" Krupp) is the school principal of Jerome Horwitz Elementary School in the Captain Underpants series. His only appearance in the Dog Man series is on the prologue comic of Dog Man: For Whom the Ball Rolls along with Melvin Sneedly.
Appearance[]
Mr. Krupp has small brown hair (as his toupee), and wears a polo shirt (most are white, others are colored) and a tie. His skin is peach.
Becoming Captain Underpants[]
Mr. Krupp will turn into Captain Underpants when he is hypnotized by George and Harold when they use the 3-D Hypno-Ring. They'll snap their fingers and make him turn into Captain Underpants, when this happens, he is wearing underwear and a red cape.
Behavior[]
Mr. Krupp is the school principal, he has a tendency to get angry at George and Harold. He gets angry at them when they are disruptive (such as making Dog Man comics), and sometimes gives them a detention in some occasions. Sometimes, George and Harold hypnotize him with the 3-D Hypno-Ring and that's how he became Captain Underpants. Then in his red cape with black dots and an underwear, he gets out of control and starts doing crazy things. He can be reversed when water is put on him, one moment he's Captain Underpants but when he touches some water he returns to his normal self.
Role in For Whom the Ball Rolls[]
He is giving out an award for most mature, when this happens, Melvin Sneedly comes up and says "Thank you! Thank you!", then Mr. Krupp says that the award isn't for him, its for George and Harold for making a 'beautiful' book called: "Ice Women Diary: A Witch's Tin Key". But when Benjamin Krupp reads the title, the crowd starts laughing, Mr. Krupp doesn't know why, but then Melvin says that he just said "I swim in diarrhea, which is stinky". Then Mr. Krupp starts reading the title again and then stops halfway when he realizes he has been pranked, after this, he and Melvin start chasing George and Harold to their treehouse, luckily they got away and held up a sign saying: "No Autographs Today".