Warm Bodies... Characters!

So right now, as you know, I'm reading the book Warm Bodies by Isaac Marion. I'm really enjoying it. I am very close to finishing it, so I know the characters pretty well! The first main character is R. R is a zombie that lives in the airport. He has a bubbly personality, but he doesn't really know how to... talk. He occasionally gets a few grunts and groans. R has a big heart, and hates the fact that to survive, he has to eat people. This is what makes him different; he enjoys the presence of the living humans, finds then fascinating.
"Living speech has always been a sonic pheromone to me. I've yet to meet another zombie who shares my appreciation for those silky rhythms." (Marion 15)

Another main character is Julie Grigio. Julie has a lot of courage. She is only scared of R for the first five minutes she's with him. Then she learns how to be around him, and even gets a little bossy. She likes adventure; she dragged R along on their "daring" adventure to get pad thai noodles from the airport lobby, and enjoyed the thrill of driving a convertible on a plane runway. Julie is a very confident person, but she's only like this because of her boyfriend, Perry (who R has just devoured), who brought out the good side of her after her depression stage. Julie accepts R for who he is, which makes him fall in love with her.