Several changes have been made from the comic to the TV show while it still "follows" the comic. Characters, however seem to be very different.
In future seasons, characters may take on the traits of a different character from the comics. Which ones do you wanna see?
Hershell seems to be developing away from his comic counterpart. I honestly like him a lot better in the TV show. He's my favorite character. He could be more like Gabriel and become the most religous of the group. He could follow a lot of Dale's path and survive past the prison. That's what I'd like to see, him living past the prison.
Personally, I like Andrea's TV version the way it's going. I think she's just a more mature, realistic version of her comic counterpart. Also, I think it would be offensive to get her killed by a zombie. She's stated that it is her worst fear to end up like her sister and I just think that would be an injustice to her character.
I really like T-Dog. I want him to develop into his own character, not be like Tyreese. Although, I do like the idea of him using a hammer as his signature weapon.
I really want her to be her own character. I think it would be cool for Andrea to become her role model. You know, become another sharpshooter and possibly be more like Andrea's comic counterpart.
Just for the record, I picked the last one.
I like the direction her character is going in the TV show.
Well, that's all of them!