Not on the list... but I'd say Alice (in Wonderland) and she's usually with the Mad Hatter. THey act on the way to and from their character greetings, are always looking for the White Rabbit and basically have the opportunity to be silly whenever they want, and can talk doing so.
Jan '07 Pop Century, Mar '07 Day Trip, April '07 Off Property, May '07 OKW, July '07 POR, Oct '07 Pop Century (& MNSSHP!!!), Dec '07 Day Trip
Jan '08 POR
Feb '08 Pop
Mar '08 Off Property
April '08 AS Sports - I think - still gotta book it