It's only been two episodes (for me, has the third one broadcast yet?) but holy shit has 'Under the Dome' achieved the mainstream TV omg!nigh-impossible and cast a gorgeous plus size actress as a character whose size has nothing to do with her personality or story arc?
Yes, the character's totally different from the novel, but Dodee the indie radio station engineer has so far been smart, brave, snarky and technically savvy, and there's been no references to her size, by her or anyone else. I know it's only two episodes in and who knows what'll happen before the show gets inevitably axed, but I'm finding it refreshing.
And yes, Jolene Purdy was Cherita 'Shut up!' Chen in 'Donnie Darko'.