Michael Cera and Ellen Page probably can't be in another movie together playing romantic interests. They're set as Pauly and Juno.
NOT Jesse Eisenberg! I am getting very sick of him *no offense, Jesse...if you're reading this*.
I don't remember who said this first, but Kat Dennings would make a good Alaska. She is very attractive, but also has a weird air of self-destruction about her.
But, yeah. Ellen Page would also make a wonderful Alaska Young. She is a fantastic actress.
Kat Dennings is a good choice, I think. But no Michael Cera on that one either because of Nick and Nora's. I agree about Jesse Eisenberg. I feel like most of these actors have passed their high school movie phase though.
I was on tumblr, and someone mentioned Chloe Moretz (Kick-ass, Hugo, Let Me In) for playing Alaska. NONONONO! She's an awesome actress, but not someone I can see playing Alaska. I've been thinking, and maybe Emma Stone (If she would dye her hair), or even Hailee Steinfeld.
I think Emily Browning would make a great Lara (or Alaska).
I think Michael Cera would still be a good Pudge. But Logan Lermon (Lightning Thief) could play Pudge too.
As for the Colonel or Takumi: I have no idea who should play them yet.
Hailee Steinfeld is way to young (15 years old).
I don't like it when adults are cast to play teenagers, but I just didn't imagine the characters in the book to be that old. I was thinking more around 17-18