Moon is the round
cat in
Whispers of the Heart. He's a crucial
element of the story. In the
manga, there were two cats, but they bore too much of a
resemblance to both
Luna from
Sailor Moon, and
Jiji from
Ghibli's own
Kiki's Delivery Service. A Ghibli rep joked that this combination of two cats is why Moon is so
plump.
Moon is mostly
cream-colored but has one
brown ear. He likes to
tease dogs, and takes the
train by himself. He seems to have some sort of
mystical connection to
Baron, but doesn't belong to the store where Baron resides. Instead, he travels all about. Different people call him different
names. (They probably all feed him, too, which is probably really why he's so fat.)