What cartoons only have 6 letters in the name?

Here are some cartoons with six letters in their name:

* Scooby (Scooby-Doo)

* Porky (Porky Pig)

* Tom & (Tom and Jerry)

* Betty (Betty Boop)

* Felix (Felix the Cat)

* Rugrats

* Looney (Looney Tunes)

* Ed, Edd (Ed, Edd n Eddy)

* Johnny (Johnny Bravo)

* Dexter

* Sponge (SpongeBob SquarePants)

* Garfield

* Courage

* Jimmy (Jimmy Neutron)

There are probably more, depending on how you interpret "cartoon."