Invader Sqood (Squood) is one of the Irken Invaders. Very little is known about this character aside from his minor appearance in which he proved to be well prepared for Probing Day. His tights are pink instead of the standard black.
Proper design artwork for Sqood was not available online until Aaron Alexovich compiled a sheet of the Irken Invader concept art for InvaderCon II: DoomCon. Sqood's name is spelled "Sqood" in the animatic for "Walk for Your Lives" and on the "List of Invaders" included with the Palisades Tallest Red action figure, but is spelled "Squood" on the concept art. It is unclear which spelling is actually correct.
Invader Sqood appears in the episode Walk for Your Lives. He is shown performing a proper puppet show on Probing Day after the failure and pummeling of Invader Slacks. It is often incorrectly assumed that the successful puppet show is also being performed by Invader Slacks, after removing his large nostril disguise (and apparently changing to an unstriped shirt). But Slacks already failed and was pummeled with no reason to attempt again until the next Probing Day.