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EW has learned that Tom Welling will guest-star in The CW’s upcoming Arrowverse crossover “Crisis on Infinite Earths” reprising his Smallville role of Clark Kent — because there’s no such thing as having too many Supermen in a massive superhero event (For those at home keeping count, the crossover will now feature three different actors as the Man of Steel). Details are scarce about how Welling’s Kent figures into the crossover; however, we do know that we’ll indeed find out what he’s been up to in the eight years since Smallville ended.
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