Exciting news today for Smallville fans. Tom Welling, who starred as Clark Kent on the WB/CW series for ten years from 2001 to 2011, will reprise his role as Superman’s alter ego on the upcoming Arrowverse crossover based on Crisis on Infinite Earths. Arrow co-creator and executive producer Marc Guggenheim told Deadline, “For eight years, Arrow has stood on the shoulders of Smallville. Simply put, there would be no Arrow, and no Arrowverse, without it,” he said. “So when we first started talking about Crisis on Infinite Earths, our first, second and third priorities were getting Tom …