Which two Doctors met in " Time Crash " ?
Additionally , the Eleventh Doctor encountered an artificial ( though physically and mentally identical ) copy of himself in " The Almost People " , fought against " Mister Clever " , an artificial personality generated out of his own by the Cybermen in " Nightmare in Silver " , and was pitted against " The Dream Lord " , a manifestation of his self-loathing and anger , in " Amy 's Choice " .