Macavity - from Old Possum's Book of Practical Cats
Macavity's a ginger cat, he's very tall and thin.
you would know him if you saw him as his eyes are sunken in
His brow is deeply lined in thought, his head is highly domed
His coat is dusty from neglect, his whiskers are uncombed.
He sways his head from side to side with movements like a snake,
And when you think he's half-asleep. He's always wide awake!
Of course, your cat may not fit that description!