Kingdom hearts question

So here's something that I've been thinking about for awhile. The reason why Roxas and Ventus look alike. If you can think of another reason why they look alike, please tell me! Sorry that's it's not in color... Lazy me is lazy orz ;-_- I hope you tell me what you think and spread the word about it!(REALLY wants to know what everyone thinks) That's all I have to say! Hope you like it! Bye-bye!