GEORGE
SMALL, QUICK , DARK OF FACE AND EYES , RESTLESS AND HE IS SOMETIMES NICE AND SOMETIMES MEAN TO LENNEI
What does he have to do with the ideas of friendship and companionship? He might look mean to Lennie but in the inside of him he loves him as a friend and he keeps it a secret and the last part i think he felt bad cuz he know that he had to do the right thing of shooting him in the back of his head just like Slim kill Candy's dog.