The extended Walker family on ABC's "Brothers & Sisters" will get a little larger early next year.
Former "Happy Days" star Marion Ross is scheduled to make a guest appearance on the show Sunday, Jan. 21 as Nora (Sally Field) and Saul's (Ron Rifkin) mother, the network announced Monday. She's the latest in a line of well-known actors to guest on the show; Treat Williams has appeared in several episodes, and Rob Lowe has also signed on to a recurring role.
The episode will have Nora's mother, Ida, making "an unwelcome visit" to the Walker home as Nora marks a "milestone" in her life. Ida is described as a "not-so-loving mother," which could explain a few things about Nora's own parenting style.
Ross is a five-time Emmy nominee best known for her role as Marion Cunningham on "Happy Days." She earned two Emmy nods for that role and two more for the early-'90s CBS show "Brooklyn Bridge" (the fifth came in 1999 for a guest appearance on "Touched by an Angel").
Her recent credits include guest spots on "Gilmore Girls" as Lorelai's (Lauren Graham) grandmother and namesake, a recurring part on "The Drew Carey Show" as Drew's mom and the Hallmark Channel movie "Where There's a Will."Copyright © 2015, Los Angeles Times