David Harewood OBE (born 8 December 1965) is a British actor and the current president of the Royal Academy of Dramatic Art. He is best known for his roles as CIA Counterterrorism Director David Estes in Homeland (2011–2012), and as J'onn J'onzz / Martian Manhunter and Hank Henshaw / Cyborg Superman in Supergirl (2015–2021).