If Katie’s realtor, Amy, looked familiar on B&B, it’s because her portrayer is Cindy Ambuehl, a.k.a. Mrs. Don Diamont (Bill). Ambuehl appeared on the soap back in 1996 as Kim, but these days, she’s a successful, real-life L.A. realtor. Of her return to daytime, she explains, “Donald called me one day and said, ‘[B&B Casting Director] Christy Dooley will be calling you. There’s a part that’s perfect for you. It’s a Realtor.’ ” For more on Ambuehl’s return to soaps — and why the hallway at CBS will forever hold a place in her heart — check out the new issue of Soap Opera Digest, on sale now.