Gretchen Rossi Returns To “RHOC”: One of the OG cast members of “The Real Housewives of Orange County” is back for season 19. Gretchen Rossi, who was on seasons four through eight, is making a grand entrance. Bravo took to Instagram gushing “She’s back and ready to make fetch happen. Gretchen Rossi joins #RHOC for Season 19!” Rossi left “RHOC” after proposing to Slade Smiley, now her husband of 16 years.