Reeko

Reeko is the tritagonist of Stuart Little 3: Call of the Wild. He is a skunk who befriends Stuart when he gets lost in the woods, but he instead uses him in exchange for getting paid with marshmallows.

In the end, he realizes what he has done and apologizes to everyone, including Stuart, for mooching them. He is shown to smell really bad and the smell is hard to get away, as when he sprays the Beast, she roars and zookeepers remark the next day that the smell will be hard to wash away and that the Beast smells like a skunk.

Personality
Reeko is well meaning, yet a little full of himself. When he first meets Stuart, he claims to be the Beast, but his secret is soon discovered.

He says that he's not scared of the Beast, but deep down, he really is. Reeko is confident and fun-loving, but he only "teaches" Stuart because he's getting paid with marshmallows.

Poor Reeko, before he met Stuart, wasn't liked by any of the other animals. He kept on taking their food when he forgot to feed The Beast.

He smells bad, well he is a skunk, and he sure can spray as he shows when protecting the others.

But when Stuart goes to save Snowbell from the Beast, Reeko tries to convince the other forest animals to help save him because he's grown close to him and he's now his friend.

In the end, he tells Stuart that he'll miss him and tells him to take care as he and his family leave. Reeko is mentioned by Stuart in Stuart Little 4 where Stuart said "Oh, does Reeko did?" that claims in North Dakota that Skunk dying.

Trivia
Reeko is sometimes thought to be the main antagonist of the film, although the true antagonist is the Beast.