Armie Hammer in 2019.Jeff Kravitz/Getty ImagesArmie Hammer is attempting a career comeback after women accused him of sexual abuse.Hammer launched a podcast and was cast in a film this week.PR experts said Hammer needs to prove that he's changed to win over the public.Armie Hammer, the actor whose career suddenly ended after several women accused him of sexual and emotional abuse, is trying to make a comeback.PR experts told Business Insider that, setting aside the ethical questions around whether he should return to the spotlight, a comeback will only be possible if he can prove to the public that he is remorseful.