Obi-Wan Kenobi star Ewan McGregor says it was “odd” to see Hayden Christensen back as the legendary Star Wars villain, Darth Vader.During an interview with Entertainment Weekly, the 50-year-old Star Wars actor explained what it was like to see Christensen back in the iconic costume.“To see Hayden back in the role of Anakin, well… it was sort of spine-tingling,” he said.