Millie Bobby Brown has reportedly filed harassment and bullying claims against her ‘Stranger Things’ co-star, David Harbour, according to the ‘Daily Mail.’ A source explains the alleged complaints, which were reportedly made before filming the final season of ‘Stranger Things’, led to an internal investigation that ‘went on for months’ and included ‘pages and pages of accusations.’ However, a source tells ET there’s no bad blood between Harbour and Brown, explaining, ‘They have a close friendship and have been through a lot together.’