Johnston first debuted in a Season 5 episode as ex-con Tammy, who was a foster sister to Bonnie (Allison Janney) during their teen years.
Mom returns Thursday, Sept. 26 at 9/8c on CBS.
Ready for more of today’s newsy nuggets? Well…
* Fargo Season 4 has rounded out its cast with Ben Whishaw (A Very English Scandal), Jack Huston (Mr. Mercedes), Jason Schwartzman (Mozart in the Jungle), Jessie Buckley (Chernobyl), Salvatore Esposito (Gomorrah), Jeremie Harris (Legion) and musician Andrew Bird, among others.
* South Park Season 23 is set to premiere Wednesday, Sept. 25 at 10/9c on Comedy Central.
* The Kennedy Center Honors, airing Sunday, Dec. 15 on CBS, will celebrate the work of R&B collective Earth, Wind & Fire, actress Sally Field, singer Linda Ronstadt, children’s television program Sesame Street and conductor/musical visionary Michael Tilson Thomas.
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* André Benjamin, aka OutKast’s André 3000, has been cast in AMC’s Dispatches From Elsewhere, an anthology created by Jason Segel (How I Met Your Mother). The series follows ordinary people who stumble onto a puzzle hiding just behind the veil of everyday life — after which they come to find that the mystery winds far deeper than they ever imagined. Additionally, Tara Lynne Barr (Casual) will recur as the younger version of Sally Field’s character, a housewife who recently lost her husband in the present day, per Deadline.
* Tony winners Benj Pasek and Justin Paul (Dear Evan Hansen) and Grammy winner Alicia Keys will executive-produce a musical drama series for Showtime, with Pasek and Paul also contributing original music. The untitled project “traverses generations to tell an emotionally complex family story that interweaves modern-day and 1959 Detroit, centering on a mystery uncovered by a young musician who moves back to her childhood home.”
* USA Network has given a 10-episode series order to Cannonball, an extreme water stunts competition based on the hit international series.
* All 164 episodes of the ’90s NBC sitcom Mad About You will be available to watch on-demand exclusively to Spectrum cable subscribers on Thursday, Aug. 1, ahead of Spectrum Originals’ upcoming revival, which will reunite original stars Paul Reiser and Helen Hunt and air later this year.
Which of today’s TVLine Items pique your interest?