Ron Stallworth
Ron Stallworth( born June 18, 1953) is an American retired police officer who infiltrated the ranks of the Ku Klux Klan in Colorado Springs, Colorado, in the late 1970s.
He was the first African- American police officer and detective in the Colorado Springs Police Department.
The 2018 film" BlacKkKlansman" is based on his experience infiltrating the Ku Klux Klan.
In the film, he is portrayed by John David Washington.
James A. Colescott
James Arnold Colescott( January 11, 1897 – January 11, 1950) was an American who was Imperial Wizard of the Knights of the Ku Klux Klan.
Under financial pressure from the Internal Revenue Service( IRS) for back taxes, he disbanded the second wave of the original Ku Klux Klan in 1944.
Bob Jones (Grand Dragon)
James Robertson "Bob" Jones (1930 – April 16, 1989) was Grand Dragon of the North Carolina Knights of the Ku Klux Klan from 1963 to 1969.
Brown Harwood
Brown Harwood( March 8, 1872 – June 26, 1963) was an American realtor and prominent leader of the Ku Klux Klan.
A resident of Fort Worth, Texas, Harwood was a charter member of the Klan in that city; he eventually became Grand Dragon of the Texas Ku Klux Klan.
In 1922, Harwood became imperial( national) klazik( vice- president) of the Ku Klux Klan.
He stayed in that position until April 14, 1925; the arrest of Klan leader D. C. Stephenson for rape and murder in Indiana turned public opinion against the organization.
Thomas Robb (activist)
Thomas Robb( born 1946) is an American far- right activist, Ku Klux Klan leader, and Christian Identity pastor.
He is national director of The Knights Party, also known as the Knights of the Ku Klux Klan, taking control of the organization after David Duke.
Sidney Olcott
Sidney Olcott (September 20, 1872 – December 16, 1949) was a Canadian-born film producer, director, actor and screenwriter.
Minnie C. T. Love
Minnie C. T. Love was an American physician and political office holder.
She was an active suffragist and a member of the Women of the Ku Klux Klan.
Samuel Roper (Ku Klux Klan)
Samuel W." Sam" Roper( April 10, 1895 – March 1, 1986) was an American law enforcement official and Imperial Wizard of the Ku Klux Klan( KKK).
Arthur Hornbui Bell
Arthur Hornbui Bell (February 14, 1891 – March 1973) was an attorney and the Grand Dragon of the Ku Klux Klan in New Jersey.
In the Clutches of the Ku Klux Klan
In the Clutches of the Ku Klux Klan is a 1913 American silent film produced by Gene Gauntier Feature Players and distributed by Warner's Features.
It was directed by Sidney Olcott with himself, Gene Gauntier and Jack J. Clark in the leading roles.

Question: Which country the director of film In The Clutches Of The Ku Klux Klan is from?
Answer: Canadian