Haynes went on to join The CW's 'Arrow' as Roy Harper/Arsenal, leaving the show and returning more than once. In December 2018, Us Weekly reported that O'Brien and actress Britt Robertson, his girlfriend of several years, broke up. More recently, O'Brien appeared on the YouTube series 'Weird City' and the Apple TV Plus show 'Amazing Stories.' Next, he'll star in a sci-fi adventure movie called 'Love and Monsters.' The 29-year-old 'Teen Wolf' alum went on to film the 2017 action movie 'American Assassin' and voiced the titular character of 2018's 'Bumblebee,' a 'Transformers' film that starred Hailee Steinfeld. O'Brien also talked about the aftermath in a 2017 feature for Vulture, explaining the physical and psychological struggles that followed his accident.
The actor spent six months recovering and hasn't gone into detail about his accident, but told People magazine that he 'went through a period of not knowing what my future was going to be.' O'Brien also made headlines in 2016 when he suffered severe injuries after a stunt for the final movie, 'The Death Cure,' went horribly wrong. He portrayed Thomas in three 'Maze Runner' films released between 20.
