Volodymyr Zelenskiy, 41, who plays a fictional president in a TV show, won 73 percent of the vote on Sunday with Poroshenko winning just under 25 percent
Ukraine's President and presidential candidate Petro Poroshenko reacts following the announcement of the first exit poll at his campaign headquarters in Kiev
Ukrainian police officers draw out an administrative offense report before handing it over to presidential candidate Volodymyr Zelenskiy, who demonstrated his ballot in public while casting a vote, at his campaign headquarters in Kiev
Ukrainian presidential candidate Volodymyr Zelenskiy displays his ballot while standing in front of the media at a polling station during the second round of a presidential election in Kiev
Ukraine's incumbent President Petro Poroshenko and his wife Maryna visit a polling station during the second round of the presidential election in Kiev
Members of a local electoral commission count votes at a polling station created for servicemen taking part in the government's five-year-old conflict in eastern Ukraine against Kremlin-backed rebels, near the front line, in the village of Zaitseve, Ukra
Ukrainian presidential candidate Volodymyr Zelenskiy walks out of a voting booth during the second round of the presidential election in Kiev