Here is the offical synopsis of the season:
"After a violent shipwreck, billionaire playboy Oliver Queen was missing and presumed dead for five years before being discovered alive on a remote island in the North China Sea. He returned home to Star City, bent on righting the wrongs done by his family and fighting injustice. As the Green Arrow, Oliver successfully saved his city with the help of his team including former soldier John Diggle, computer-science expert Felicity Smoak, former protégé Roy Harper, street-savvy Rene Ramirez, metahuman Dinah Drake, brilliant inventor Curtis Holt and Earth-2 Laurel Lance. In the wake of discovering what his future holds, Oliver will find himself pit against his most challenging battle yet, one that will leave the multiverse hanging in the balance. In Arrow’s final season, Oliver Queen is forced to confront the reality of what it means to be a hero."
- See I agree that she should be listed, if we aren't using the language of crediting and instead saying main and recurring we should use characters confirmed as series regulars, but this is something we have precedent on, so argue against the policy, not try to shove this into it, especially with multiple reverts explaining that its not how the wiki currently works.Schroeswald (talk) 17:43, October 27, 2019 (UTC)
https://tvline.com/2019/06/04/arrow-season-8-joseph-david-jones-series-regular-connor-hawke/ Chinkycandie (talk) 06:07, June 5, 2019 (UTC)
https://deadline.com/2019/07/arrow-katherine-mcnamara-promoted-series-regular-final-season-the-cw-drama-1202644818/ Okay I don’t know why it gives you an error message when I copied the link directly from my search bar, but the article is about Katherine McNamara being promoted to series regular for season 8.--OneOfThoseCrazyGirls (talk) 02:04, July 12, 2019 (UTC)
Ben Lewis also got promoted: https://tvline.com/2019/07/17/arrow-final-season-8-ben-lewis-series-regular-future-william/--OneOfThoseCrazyGirls (talk) 21:56, July 17, 2019 (UTC)