Is a fictional character and the main antagonist from the James Bond novel Thunderball.
Fleming describes Largo as a ruthless Neapolitan black marketeer and fence who moved to riskier and more profitable ventures on the international crime scene after five years smuggling from Tangiers and five years of master-minding big jewel robberies on French Riviera. He is supposedly the last survivor of a once famous Roman family whose fortune he inherited. Largo eventually became the second-in-command of the terrorist organization SPECTRE.
In the film, Largo is “No. 2” and head of extortion operations. In the novel, Largo is “No. 1”; however the numbers are rotated every month as a security precaution, although Largo is the successor to Ernst Stavro Blofeld and the Supreme Commander of “Plan Omega”.