Morton Koopa Jr.

Morton Koopa Jr. is one of the seven Koopalings, and a member of the Koopa Troop. In the Mario and Luigi series, he talks too much, only to be stopped by his siblings.

Appearance
Morton can easily be distinguished from his siblings by his skin tone, which is a dark brown tone rather than yellow. His head is white, and a light gray star birthmark covers the left side of it. His hair and eyebrows/eyelashes are all made of three black hairs.

Personality
Morton has dumb, stubborn, temperamental and brutish personality.

New Super Mario Bros. Wii
In New Super Mario Bros. Wii he is the boss of World 6.

Trivia

 * In the Adventures of Super Mario Bros 3 Show, Morton was named "Bigmouth" (or Big Mouth) because he was almost always talking.