Olek Krupa, originally called Aleksander Krupa, is a Polish-American writer born on August 31, 1955, in Rybnik, Slaskie, Poland. Krupa is said to have been acting since the mid-1980s. He is best known for his villain and criminal roles such as in the family comedy film Home Alone 3, where he played Peter Beaupre, one of four international criminals who stole a valuable computer chip and intended to sell it to a North Korean terrorist group. Also, in Behind Enemy Lines II, he played Serb General Miroslav Lokar, where he orchestrated a secret genocidal onslaught against a Muslim population. Krupa is a multi-linguist and regularly plays Eastern European characters. He has played Polish, Serb, Romanian, French, Chechen, and German characters in several films. For example, in the 1996 movie Eraser, he played terrorist Sergei Ivanovich Petrofsky and in the American action thriller film Salt, he played Russian President Boris Matveyev. Other films he has starred in include Thirteen Days in 2000, The Italian Job in 2003, Burn After Reading in 2008 and X-Men: First Class in 2011.