Dylan O'Brien in The Maze Runner
In 2016, Dylan O'Brien suffered an accident on the set of The Maze Runner that could have ruined not only his career, but his self-esteem. O'Brien was performing a stunt that went tragically wrong—he was reportedly thrown from one vehicle and hit by another. The actor was left with a concussion and a severe facial fracture, which left him in a "really fragile, vulnerable state."