Pinkerton Agency

The Pinkerton Agency, also known as The Pinks and The Eye That Never Sleeps, was an infamous spy organisation that flourished as far back as the 19th century. (NA: Shakedown)

After meeting the Sixth Doctor and Evelyn Smythe in Ford's Theatre on 14 April 1865, Henry Clay Ford became convinced that they were Pinkerton agents. (BFA: Assassin in the Limelight)