Stranger Things costars Millie Bobby Brown and David Harbour have a long and complicated relationship. The two have worked closely on the show in their roles as Eleven and her adoptive father, Jim Hopper, respectively, for a decade, starting when Brown was 11 years old. Now, Brown and Harbour's offscreen relationship is being dissected following a report that the British actress filed a bullying and harassment complaint against the Hellboy star ahead of Stranger Things season 5 filming. Keep scrolling to see everything Brown and Harbour have said about working together on the Netflix series.