Oops, I thought you were looking for an artist, but everyone's talking about software. "mebbe me no supiku engarishu so gudu" For 2D animation tools: AFAIK the open source branch of MOHO became 'synfigstudio' http://synfig.com/ , also 'ktoon' http://ktoon.toonka.com/ is under active development. Both are in synaptic.