Mr. Underwood

Mr. Underwood is Greg's Physical Education teacher. He has a very little role in the first book, but it's bigger in the film. His role in The Last Straw was a minor but important appearance, where he was walking with Mrs. Mancy to mark the student's dancing abilities in regard as it counted to 20% of P.E. Grades. In the movie, he is replaced by Coach Malone.