Aaron Blinovitch

Aaron Blinovitch was a temporal physicist on Earth and the author of the book Temporal Mechanics. The Blinovitch Limitation Effect was named for him.

He was a member of Faction Paradox. (PROSE: Unnatural History)

He conceived of the Blinovitch Limitation Effect in 1928 while in the Reading Room of the British Museum. (PROSE: The Ghosts of N-Space)

At some point, according to the Twelfth Doctor, Blinovitch met President Courtney Woods. (TV: Kill the Moon)

Alternative universes
In the Unbound Universe, the Unbound Doctor said that Blinovitch was a dull man. (AUDIO: Asking for a Friend)

Behind the scenes

 * After the brief mention of Blinovitch being a member of Faction Paradox in Unnatural History, Ian McIntire wrote a short story called Unlimited that explored Blinovitch's life in the organisation. It was published in the 1999 charity anthology Perfect Timing 2. McIntire would go on to contribute to the Faction Paradox series in The Book of the War.
 * In Truth or Consequences, Peter Harness' original draft of The Zygon Inversion, Courtney Woods became a pro-Zygon freedom fighter under the name "Blinovitch". Her character's role in the story was cut in later drafts.