'Arrow' might only be four episodes deep into its inaugural season, but already a wealth of DC comics characters have made their presence known to The CW's incarnation of Oliver Queen (Stephen Amell). Who's the latest, you might wonder? Why, none other than the most off-setting big bad of all, DC's Count Vertigo! Sort of. The character will of course recieve his own 'Arrow' twist to fit into the CW's more grounded universe, so find out the changes inside!