David Strathairn, whose stellar career as a character actor has spanned decades, gives a brilliant, riveting solo performance in Remember This: The Lesson of Jan Karski. Playing a Pole who experienced the Holocaust, he draws on historical evidence and the testimony that playwrights Clark Young and Derek Goldman employ in their portrait of a righteous and desperate man determined to prevent the annihilation of his country’s Jews. This is the real-life Karski, humble, modest, and painfully aware of what he could do, and more so of what he could not do, to save them.