Mr. D (season 7)

Mr. D is a teacher who is very successful with his pupils, their parents and other teachers. The secret of his success is he is helpful, good-hearted, and he never goes past the person who is in trouble. Mr. D can get into any hard situation, he can sympathize with the problem of a child when others turn their backs. He can give a simple and genius advice how to get out of the difficult situation.