8) Ahmed Sekou Toure (Guinea)
Ahmed Sekou Toure ruled Guinea from 1958 to 1984. He was a corrupt leader who imposed harsh laws on the people. He became infamous for inventing innovative methods of murder.
7) Teodoro Obiang Nguema Mbasogo (Equatorial Guinea)
Teodoro Obiang Nguema Mbasogo is the president of Equatorial Guinea. He has ruled Equatorial Guinea since August 1979. He came to power by overthrowing his uncle Francisco Macias Nguema in a bloody coup. He is currently the longest serving president in Africa.