Also included in the show are Dib and Gaz's father, uber genius, professor membrane , the school teacher of doom Ms Bitters , (WHERE do they get these names?!), the first invader to successfully conquer his planet, home of the giagntic carniverous rats, and next to Zim, the shortest ugliest invader, Invader Scooge , a small child Zim employed for the day as his best friend, Keif ,The house complete with garden gnomes , and other such important aspects of the show.... anyhoo, hope you all realize this was just a chance for me to look at awesome Invader Zim pics and show the world :D