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 recommendation letter for court is a document that provides insight into your character and personal attributes. The character reference letter for court serves the purpose of offering the Judge insights into the Defendant's moral or mental attributes. A character reference template is a formal letter format that can be edited and filled out with personal info to create a customized court document. Be totally honest, talk about the persons positive traits. What you know they have done to better themselves while incarcerated. The best character letters often begin with the writer explaining who he or she is and what he or she does. A character letter plays a dual role. Many judges will accept letters of character or support prior to sentencing.