Mahershala Ali-American actor and first Muslim actor to win an Oscar[1] Muhammad Ali (born Cassius Marcellus Clay, Jr., 1942–2016) – converted from Baptist[2][3] to The Nation of Islam to Sunni Islam;[4] American professional boxer (three-time world heavyweight champion), philanthropist and social activist Rowland Allanson-Winn, 5th Baron Headley – British soldier and peer[5][6] Vladimir Arutyunian – failed assassin of George W. Bush, converted to Islam in prison[7]