The Conners season 6 brings back a core character who has been missing throughout the year. Ever since it premiered, the Roseanne spinoff sequel has written off several players — both new and legacy ones. It's also not unusual for the show to not feature some members of the family from time to time. This way, it could focus its time on certain characters. Still, The Conners season 6 not bringing back a primary cast member for several episodes is suspicious, especially when they are poised to play a big role in its upcoming run.

https://screenrant.com/the-conners-season-6-episode-4-synopsis-mark-return/