who plays hannah on dexter
Yvonne Strahovski returns to 'Dexter' as 'sensitive sociopath' Hannah McKay. Many women say they would kill to be in a perfect relationship. Yvonne Strahovskiâs character on âDexterâ has taken that notion literally. The 31-year-old Australian actress â returning as Hannah McKay, Dexter Morganâs biggest passion besides, um, killing â has both the body and body of work to make her Americaâs sociopathic sweetheart. âI call her a âsensitiveâ sociopath,â Strahovski says of her character.