Colton's character Roy departed Star City in season 3 (which left a big hole in the series, if you ask us) but he is back to charm our hearts in the next season.
“We’re very fortunate and excited to welcome back Colton to Arrow. While we’ve always enjoyed Colton’s returns to the show, we couldn’t be more thrilled to have him return as a proper series regular and we’re very excited about all the creative opportunities Roy Harper’s return affords us,” the Arrow exec producers said in a joint statement.
Colton also addressed the exciting news on Instagram, writing:
Welcome back, bb!