At one point the CIA even sought the help of the Mafia in the hope they would be able to succeed where so many others had failed. Other characters are Cuban exile Félix Rodríguez, the CIA operative who trained Cuban exiles for the Bay of Pigs Invasion, and who was present when the Bolivian Army killed Che Guevara in 1967 at the request of the Bolivian President at the time, and Enrique Ovares, possibly the first man to make an attempt on Castro's life after he took power. Robert Maheu is also interviewed, the Hughes associate who served as liaison between the CIA and mobsters "Johnny" Roselli and Sam "Momo" Giancana, in another plot to kill Castro, this time using poison pills.
The CIA sought help from the Mafia at one point, hoping they could succeed where others had failed.  Felix Rodríguez, a Cuban exile who trained exiles for the Bay of Pigs Invasion, was present when the Bolivian Army killed Che Guevara at the request of the Bolivian President in 1967. Enrique Ovares, possibly the first person to attempt Castro's assassination after his rise to power, is also mentioned. Robert Maheu, a Hughes associate who acted as the CIA liaison between mobsters "Johnny" Roselli and Sam "Momo" Giancana, was involved in another plot to kill Castro using poison pills.