According to scholars (among them Marina Margaret Heiss at the University of Virginia), the following individuals have or had INTJ personalities:
Friedrich Nietzsche
Caesar Augustus (Gaius Julius Caesar Octavianus)
Hannibal (Carthaginian Military Leader)
Stephen Hawking
Niels Bohr
Peter the Great
John Maynard Keynes
Lise Meitner
Ayn Rand
Isaac Newton
Donald Rumsfeld, Former U.S. Secretary of Defense
General Colin Powell, Former U.S. Secretary of State
Arnold Schwarzenegger, Governor of California more like INTP
Michael Dukakis,1988 U.S. Democratic Presidential Candidate
Susan B. Anthony, Civil Rights Pioneer
John Forbes Nash, American Mathematician and Economist
Rudolph W. Giuliani, Former Mayor of New York City (

)
Politicians
Vladimir Putin
Vaclav Klaus
US Presidents:
Thomas Jefferson
James K. Polk
Ulysses S. Grant
Chester A. Arthur
Woodrow Wilson
Calvin Coolidge
Dwight D. Eisenhower
Fictional:
Paul Atreides
Gaius Cassius Longinus
Gandalf the Grey
Hannibal Lecter
Severus Snape
Clarice Starling
Professor Moriarty
Ensign Ro
Rosencrantz
George Smiley
Sherlock Holmes
Dr Gregory House