Invader Skoodge
From Scratchpad
Invader Skoodge was shown in the first episode as being the shortest, fattest, ugliest Invader (although it is shown a few episodes that Zim is even shorter). Since the Irken culture idolizes height, little Skoodge was at an instant disadvantage. In scorn of his stature, the Tallest sent him to invade Planet Blorch, home of the Slaughtering Rat People, where he was expected to die horribly.
However, Skoodge is a highly skilled Invader - the first Invader of Impending Doom Two to successfully subjugate his assigned planet. The Nickelodeon e-card for Skoodge says he survived on Blorch by eating really nasty things.
On the arrival of the Irken Armada to Blorch to proclaim their first successful Invasion, The Tallest refused to make short Skoodge their poster-boy for galactic conquest. Instead, declaring a 'new tradition' on the spot, they instead fired him out of a cannon into space. A taller Irken civilian, randomly selected by Tallest Purple, was dubbed Invader Skoodge, and paraded in front of the cameras. Also when Zim was sent to a planet for military training, (or so he thought) Skoodge was there as well and used by Zim to get through the trials.
Skoodge and Zim were smeeted (born) in the same generation of Irkens, (The Trial) and their first (and most subsequent) adventures together usually lead to Skoodge suffering horrible pain. Zim believes Skoodge to be very gullible. Skoodge was originally slated to have a larger role in season two: he was to be hiding from The Tallest in Zim's basement and was later to be in many future episodes such as "Day of da Spookies." For some odd reason, he can live without a PAK to support his life and seems to be able to think without a brain.
Invader Skoodge was voiced by Ted Raimi.

