Villains
Hitler,
Stalin, collective reward for
polish communists like W. Wasilewska and B. Bierut at least in the war and shortly after the war period (especially for saying things like "we demand, in the name of polish nation, to give the city of Lwow to Ukrainian Soviet Republic"), F. Dostojewski, a reknown russian writer, is a good example of a traitor as well, for, being polish of both parents, he not only turned russian, but hated Poles and portrayed them as badly as he could in his books.
Frederick the Great,
Catherine the Great are considered great villains as well, because they partaged Poland. Somehow that does not apply to Marie Therese, who started the entire affair.
Bismarck is considered great villain, for fighting Poles ruthlessly.
Jozef Ankwicz is shown in schoolbooks as archetypic traitor; when foreign powers partaged Poland, they demanded from polish parliament to accept it. Russian soldiers were guarding the parliament, and were told not to leave until the parliament passes approvement of the partage. Parliamentarists agreed to give Russia what it wanted, but when it came to Prussia (which took Major Poland, the craddle of polish state), they protested against this partage by sitting in complete silence. After a couple of hours Russians were tired of this, and asked if the parliament accepts the partage or not. Then, Jozef Ankwicz replied that "silence means approval". He was executed during Kosciuszko uprising
Another great villains/traitors were the leaders of
Targowica confederation. Because after the Great Parliament introduced the reformatory Constitution (the second state constitution in the world), some polish magnates asked Russia for help, to quash the reforms and re-establish Russian rule in Poland, securing the internal anarchy and their influences. This resulted in the second partage of Poland. These men included F.K.Branicki, S.Rzewuski and Sz.M.Kossakowski (who was cute
http://en.wikipedia.org/wiki/Image:Szymon_Marcin_Kossakowski_(1741-1794).jpg)
Earlier, there was
B. Radziwill, who tried to carve up his duchy out of Lithuania during the Swedish Flood war. There were other traitors in this time -
K. Opalinski, who surrendered polish army to Swedes without a fight (he wanted to become a duke of Major Poland in cooperation with Brandenburgians)
Then, there's Great Elector, Frederic Wilhelm, elector of Brandenburg and prince of Prussia, who betrayed Poland in this war, allied with Swedes and got independant.
Somehow, swedish kings themselves, though having done immense harm to Poland (artworks stolen, cities destroyed, up to a third of population killed), are not seen as great villains, while they should; Charles X Gustav, Charles XII
Teutonic Knights - a collective for owing their existance in over Baltic to Poland, and then attacking it when it was weak, taking its lands, claiming in Europe that Poles are pagans etc and attempting to destroy Poland as a whole.
Heroes another time or never. I should be learning, not writing at this forum 