I haven't been there, but if you look through the threads the last several days, there have been a few about the meals at 1900 PF.
The breakfast characters I remember from other posts are Alice in Wonderland, the Mad Hatter, and some mix of Pooh, Eeyore, or Mary Poppins.
Dinner characters are Cinderella, Prince Charming, two of the mice (Suzy and Perla I think are their names), and the Fairy Godmother in the lobby for pictures.