Mao Ze-Dong 49-78,000,000
Jozef Stalin 23,000,000
Adolf Hitler 12,000,000
Leopold II Belgium 8,000,000
Hideki Tojo 5,000,000
Ismail Enver 1,200,000
Pol Pot 1,700,000
Kim Il Sung 1,600,000
Menghistu 1,500,000
Yakubu Gowon 1,000,000
Leonid Brezhnev 900,000
Jean Kambanda 800,000
Saddam Hussein 600,000
Tito 570,000
Sukarno 500,000
Fumimaro Konoe 500,000
Jonas Savimbi 400,000
Mullah Omar - Taliban 400,000
Idi Amin 300,000
Yahya Khan 300,000
Benito Mussolini 300,000
Mobutu Sese Seko
Charles Taylor 220,000
Foday Sankoh 200,000
Suharto 200,000
Ho Chi Min 200,000
Michel Micombero 150,000
Slobodan Milosevic 100,000
Hassan Turabi 100,000
Jean-Bedel Bokassa
Richard Nixon 70,000
Efrain Rios Montt 70,000
Papa Doc Duvalier 60,000
Rafael Trujillo 50,000
Hissene Habre 40,000
Chiang Kai-shek 30,000
Vladimir Ilich Lenin 30,000
Francisco Franco 30,000
Fidel Castro 30,000
Lyndon Johnson 30,000
Hafez Al-Assad 25,000
Khomeini 20,000
Robert Mugabe 20,000
Rafael Videla 13,000
Guy Mollet 10,000
Harold McMillans 10,000
Paul Koroma 6,000
Osama Bin Laden 3,500
Augusto Pinochet 3,000
Al Zarqawi 2,000
Now THAT is a list of infamy.
A paired list might feature people who did little direct harm, but the consequences were enormous. Gavrilo Princip killed one person, precipitating World War I (sixth deadliest conflict in history).
Quite a list of bad guys. Some on that list not only killed, but ate some of their victims. Those being the
Emperor Bokassa types.