What is your お気に入り cast for The Host movie?

I want to see Odette Yustman as Melanie. she's my no 1 choice but if she can't, Jana Kramer, Minka Kelly または Missy Peregrym can play her, though they're older than Mel's age. Camilla Belle can be nice, too.
For Wanda, I thought Rachel Hurd Wood, Brittany Robertson または Annasophia Robb can be pretty good. The first one is my no 1 choice.
For Ian, I wish to see Henry Cavill but if he doesn't play Ian then Matt Dallas with contacts.
I wouldn't mind it if they find some better guy with darker blue eyes,though.
I'd be very happy if Jensen Ackles played Jared. If not him, Ryan Reynolds, Chris Pine または Justin Hartley.
As Doc, Paul Bettany would be the best choice. If not him, then Mke Pellegrino.
As the seeker, Thandie Newton, Jada Pinkett Smith または Christina Ricci
As Kyle, Andy Whitfield
As Sharon, Laura Prepon または Jennifer Morisson from House.
As Sunny, Rachel Bilson, Camille Guaty または Shiri Appleby
This is my cast so far.

Sophia ブッシュ または Kristen Bell, with dyed hair…or Kristin Kreuk…or Thandie Newton should play the Seeker
Taylor 迅速, スウィフト または Ashley Benson または Brittany Robertson または Emily de Raven または Elisabeth Harnois should play Wanda
Shay Mitchell should play Melanie Stryder FOR SUREEE
    *if she can’t, then Jana Kramer または Odette Yustman with a tan または Minka Kelly with a tan might be ok. All these girls seem too white though.
Casey Affleck または Tom Welling または Kellan Lutz または Johann Urb should play Ian
Paul Walker または Jensen Ackles または Ashton Kutcher should play Jared
Ben Affleck または Colin Farrell または Sebastián Fillol.. または Andy Whitfield または Nick Zano または Channing Tatum should play Kyle
Callum Keith Rennie または Tom Selleck as Doc または Jeb
Gerard Butler または Jeff Bridges または Ryan Reynolds as Doc
Rachel Bilson または Mila Kunis または Rachel Leigh Cook as Sunny/Jodie
Milla Jovovich または Isla Fisher または Amy Adams as Melanie’s cousin Sharon
Sigourney Weaver as Maggie
Jake Austin as Jamie Stryder

I don't have any idea on the rest of the cast, but I was picturing Julianne Moore as Melanie the whole time I was reading. Even though she doesn't fit the exact description, she gives off a sense of strength and definitely fits the body type.

Melanie.. i think some like Sophia ブッシュ is a good pick.. あなた need someone strong and curvy.. not too thin!
Jared.. easy one..Sam Worthington または Yani Gellman
Ian.. another easy one..Luke Evans
Doc.. David Thewlis would be good.. someone not to young and still loveable (but slightly scary!)
Jamie.. Kiowa Gordon with his longer hair
Wanda.. Chloe Moretz または Anna Sophia Robb

So far.. those i know for sure! the others i still haven't decided on..