I'm sorry but some of these choices are ridiculous for Kyle. I'm not saying my choice (Sam Worthington) is the only option, but... COME ON... Jensen Ackles & Chris Evans... they doesn't have fair skin or black hair! Some other good choices would be Tom Welling, Zachary Quinto, and Brandon Routh.

James Marsden - He is only 5'10, and Kyle is suppose to be one of the tallest one in the group.
Joshua Morrow - He looks a little too old. His only real credits are from a Soap Opera and before that he was a pop star... gag me.
Kevin Durand - He is a pretty decent choice (right look and height) but he might look too old now.
Kellan Lutz - He is in the Twilight Series, so I doubt he could be in both when Breaking Dawn will be filming around the same time.
Cillian Murphy - He is only 5'9.
Jesse Metcalfe - He is Hispanic and olive-skinned. Kyle is fair.

When I saw Andy Whitfield, I got really excited. I felt like I really saw Kyle in flesh and bone! He even has that crooked nose that Kyle has! The only problem is that he's not too tall like Kyle but let's overlook that problem , please! :)

Tom Wellin is my Ian, Ian Somerhald is my Kyle. The only thing I remembered about Kyle was that he had this angry look (Which Ian S. also have), and that Kyle and Ian looked so much alike that they just had to be brothers. I think Tom and Ian are almost identical lol But that Ian looks more "angry" which fits to the description. This was what I remembered from the description, this is the only thing I care about when it comes to Kyle, so it is just perfect. I heard with one of my friends who is also totally in love with this book, and she agreed.

Kellan was my first thought from the first moments i read about him

Kellen seems to be the only decent choice.(not saying there's anything wrong with the choices) Brandon Routh is my Kyle, and Ian Somerhaler is my Ian.