Riverdale's fifth season began filming earlier this month, ushering in an entirely new era for the hit The CW series. While details surrounding a lot of the season's plot remain under wraps - outside of confirmation that there will be a significant time jump - we now know one of the first new faces fans can expect to see. According to a new report, The Resident star Erinn Westbrook has been cast in the series in a new series regular role. Westbrook will be playing Tabitha Tate, the ambitious, entrepreneurial granddaughter of Pop Tate, who has come to Riverdale to take over Pop’s Chock’lit Shoppe in the hopes of franchising the iconic diner, even as the town around it struggles to survive.