M'dwello Di was a Kajain'sa'Nikto serving a three-decade year prison term on Tamazall due to his conviction for space piracy. While situated in her office on the planet Nevarro at approximately 9 ABY, Marshal Carasynthia Dune reviewed several records, including this criminal's entry in the New Republic penal database, during her search for the file of inmate Migs Mayfeld. This criminal's last name, Di, was the same as that of Nikto figures such as Jedi Master Ima-Gun Di, and crime lord Rinnrivin Di.
The initial appearance of M'dwello Di's file occurred in "Chapter 14: The Tragedy," which is the sixth installment of The Mandalorian's second season, and it was made available on December 4, 2020.