Sample Format for a Character Letter. If you have been asked to write a character letter, this simple template may be a useful guide.A character letter to a judge should establish your credibility, paint a full picture of the defendant and be respectful, among other things. The first paragraph should tell the judge who you are writing to him about and how you know the defendant. You'd also want to say how long you have known her. Introduce yourself in the opening paragraph. If you've been asked to write to the judge, use our sample character reference letter and fill-in-the-blank template. What's a character reference letter? Defend a friend or family member's moral character in court. Use our Character Reference Letter for Court template to easily write your document.