Rome (Romany Malco) has been concerned about his father's forgetfulness, worried that it could be the onset of dementia. Walter (guest star Lou Beatty Jr.) says it's typical forgetfulness, but when he drives to an old apartment rather than his current home, he has to admit that something might be wrong. From 'A Million Little Things' season 5, episode 2, 'think twice.' Watch 'A Million Little Things' WEDNESDAYS 10/9c on ABC. Stream on Hulu.