https://screenrant.com/night-court-abby-stone-mother-christine-theory/

The Night Court reboot pilot doesn’t identify Abby Stone’s mother, but a new theory suggests that it is Christine Sullivan from the original series.

Abby's Mother In The Night Court Revival Will Be Played By A Sitcom Icon (https://screenrant.com/night-court-revival-abby-mom-casting-details/)

Abby's mother in the Night Court revival will be played by a sitcom icon as Faith Ford joins the cast of the newly premiered sequel series.