An actor who participates in a psychological experiment pretending to be a subject but in actuality working for the researcher (also known as a 'stooge')
someone who assists in a plot a supporter of the Confederate States of America form a confederation with; of nations of or having to do with the southern Confederacy during the Civil War; "Confederate soldiers
Of or pertaining to the government of the eleven Southern States of the United States which (1860-1865) attempted to establish an independent nation styled the Confederate States of America; as, the Confederate congress; Confederate money
a person who joins with another in carrying out some plan (especially an unethical or illegal plan)