There are several characters from the original Night Court who could return to appear in the revival series. The new Night Court proved popular with audiences and critics alike and earned a swift renewal for season 2. Despite this, the fact that John Larroquette was the only actor from the original Night Court to return for the reboot raised questions regarding whether other characters from the classic courtroom comedy might return for a cameo.

https://screenrant.com/night-court-original-characters-revival-appear-return/