If you want to learn more about Rebecca’s mom on This Is Us, you’ll have to go deep into the Weeds.
Elizabeth Perkins has signed on to play Janet Malone, the mother of the Pearson matriarch played by Mandy Moore, EW has learned exclusively. The Emmy-nominated Weeds actress will be seen in flashback scenes when Rebecca is an adult. (Another actress was briefly seen as Rebecca’s mom in an episode 5 flashback that featured Rebecca as a child.)
The Big star — whose recent TV credits also include How to Get Away With Murder, How to Live With Your Parents (for the Rest of Your Life), and The Closer — will appear in at least one episode that will air later this season. Perkins and Moore both starred in the 2002 dramedy All I Want.
The season 1 guest roster of This Is Us has featured Gerald McRaney, Katey Sagal, Brad Garrett, Janet Montgomery, and Jami Gertz. Upcoming familiar faces include Sam Trammell, Denis O’Hare, and Jimmi Simpson.
This Is Us airs Tuesdays at 9 p.m. ET/PT on NBC.