Shaban Jafari ( Persian : شعبان جعفری ; 19 August 1921 – 21 March 2006), also known as Pahlevan Shaban Jafari (Persian: پهلوان شعبان جعفری , romanized: Pahlaven Sha'bān Jafari ) by Pahlavi supporters or Shaban the Crown-Bestower (Persian: شعبان تاجبخش , romanized: Sha'bān-e Tājbakhsh ) or Shaban Bi-Mokh (Shaban the Maniac) by Pahlavi opponents, was an Iranian political activist and practitioner of Pahlevani and zoorkhaneh rituals . A controversial figure in Iranian politics, he was instrumental in overthrowing Prime Minister Mohammad Mosaddegh 's government in the 1953 Iranian coup d'état .