Nepeta Leijon (EntityTopic, 23)
From Compile Worlds
Nepeta is Keiji's favorite character from Homestuck, even though he hasn't even seen her first appearance in it yet. Wherever that might be...
She is a catgirl troll, named after wikipedia:Catnip, which clearly recognises her awesomeness by redirecting that page to her. Perhaps surprisingly, her name is not derived from The Neptune, even though each troll seems to be associated with an astrological sign.
She always talks with ":33 <
" at the start of her post, in full lowercase, with no apostrophes, turns "ee" into "33", gives all her emoticons two mouths, and inserts cat references wherever pawssible.
Rose would be a good match for Kanaya, of course. :33 < its sooo obvious! Complete with dramatic pause for effect.