I thought Watson had some success after the Harry Potter movies. Looking at her filmography, she was in some successful movies but nothing in the last four years. I wonder if she's moved on or is taking a long hiatus.
You could make a very long list of actors from TV shows who are fairly famous for that role, but haven't done much since.
The main cast of the Brady Bunch for example.
Brosnan already was already a name for Remington Steele, and he went on after Bond to high profile roles in films like The Matador (2006), Mama Mia! (2008), and most recently The King's Daughter (2022), which earned praise from esteemed critics like in this review below starting at 1:43.