you know, I'm going to be honest -I think the casting and acting is flawless in the first season- right down to the minutest characters. It's pitch perfect. All the way from Cooper to Battis to Hebba all the way down to Harriet Hayward.
If I had to pick one I would actually say Lee as Maddy. But there's something off that works. And then in the second season, the character finally started to click. Her scene in the diner destroying her glasses and talking to James by the lake elevate her from a plot device.
James is a hard character and doubtful some of the scenes marshall could pull off at the time, but so much is also due to the writing and corner painted into with that type of character.
Wendy is outstanding and probably one of the strongest trained actors in the whole ensemble- again, it would be the writing.
I think Lara Flynn Boyle is pretty damn good for being 19 at the start of this series and so sure of herself. If I had a problem it would be in the second season when most likely Boyle is more self conscious and jocking for position on a hit show. And I do want to stab my eardrums when she sobs, "You're my Daddy, you're my Daddy!"
I'm racking my brain trying to think of a trully bad performance and not just a bad character.
I'm not going to pick on a young boy who played Nicky because what can you say. Does Billy Zane give a bad performance? I don't know. His wardrobe and lines doesn't help, and his Prince Charming kinda oozes slime and cheese. And Heather Graham is so wooden she might as well be Pinnochio. This might have to do with her age and the directing... she's terrific in Boogie Nights (but that could easily be the directing) and wooden again when she has to do broad comedy like Austin Powers. But let's face it, the character of Annie was on my shit list no matter what and could have been played by Meryl Streep or God himself and I would have complained.
So kudos to Peaks for really having uniformly great performances.
*I also have to say, rewatch Ben and Audrey's first scene together. "Bidets in a Bulgarian convent!" scene. It's all one take and Beymer and Fenn nail it. it's difficult stuff to do.