A character letter is designed to show support for a defendant in a criminal case. These letters have the potential to influence the court.The character letter allows the judge to hear about how others view the defendant. A character letter to a judge should establish your credibility, paint a full picture of the defendant and be respectful, among other things. You may petition the court to speak at sentencing in most criminal cases. You may submit a letter to the judge through the Clerk of Court. If possible sign the letter along with typing out your full name. Example Format for a Character Letter to the Judge. Date. A character letter is a letter of support from people who know you to help show judges and DAs the positive sides of you. Chris Collins letters 1 - Free download as PDF File (.