I think my favourite has to be either Carl or Dug. Carl is just so sweet, I really sympathise for him. I just want to squeeze him <3 And then Dug, Dug makes me want another Golden Retriever pup! He is just so gorgeous and funny. N’aww!
Probably Kevin. She got me since her first apparition.
I also love Carl and Ellie, Muntz is an awesome villain, Russell is the best laugh ever and Dug is adorable even when I don’t like dogs. And don’t forget the house, a character by itself.
So you have a perfect cast on a perfect movie.
Carl’s a good character because he changes a lot. I also like Charles,one of Pixars best villians. I say it may be a tie for them.
I think I’m the only person who has Ellie as a favorite character!
^ No, you aren’t. She’s partially my favorite, tied with Kevin. I’m totally in love with Ellie’s character.
Same here! But in the end, I end up loving them all about equally. It’s just such a good cast. 
I can tell you like Ellie Leirin, from you drop dead beautiful sig!
Yes, what an awesome signature. A serious contender for the next Pixar Planet Awards.
I love Ellie. Her character is loud and crazy, and she balances out Carl’s shyness perfectly. I love Carl and Ellie as a couple, and as individuals.
And Muntz was a fantastic villain.
Oh geez guys, thanks! 
The compliments really just keep pouring in! xD And it’s cool that you think that, rock-itpop, I think we’re in a minority here about Muntz. I consider him one of the most intimidating Pixar villains.
I also love Muntz. His voice is awesome, like his design. And I love adventurers and the blimp… well you maybe noticed I’m named after it
Thats why he’s in my sig.
Yaya, another Ellie fan! Ellie is getting so much love lately.
I can’t decide. Monsters, Inc. is the same way. I love all the characters so much I can’t have a favorite!
My favorite is Dug. Well, I have a weakness for dogs, including animated ones. He is not the deepest character in the story, but he’s adorable, he’s devoted, he has a dead-on behavior of a golden retriever, and he reminds me of my friend’s dog.
However, as I’ve already said somewhere, Carl and Ellie are my favorite Pixar couple.
all of them, but I admire
Muntz & Fredricksen personalities
I like all of the characters. Literally. But I’ll go with Carl.
Not alot of characters to choose from, so … Carl - Muntz - Dug. In that order.
Russell was annoying (i’m convinced his character was meant to be that way)
^ Now that you say it, I’ve always considered that.
Up is probably the Pixar film with the least wide variety of colorful secondary characters.
It has the fewest characters at all.