Engin

Engin was a Time Lord who served as Coordinator of the Matrix. He retired and sat as an Independent on the High Council, later returning to his role (now known as Keeper) by the time of the Last Great Time War.

Biography
Like all Time Lords, Engin was taken from his family at the age of eight for the selection process in the Drylands. Staring into the Untempered Schism as part of a Time Lord initiation rite, Engin was inspired by what he saw in the Schism. (PROSE: A Brief History of Time Lords)

Engin worked in the Archives as Coordinator of the Matrix. By the time that had Chancellor Goth assassinate the 406th President, he was in his twelfth incarnation. (PROSE: Doctor Who and the Deadly Assassin) He sent the Fourth Doctor into the Matrix to do battle with Goth. After the Master was defeated, he was put on the Committee of Inquiry. (TV: The Deadly Assasin)

Coordinator Engin was considered very old during Flavia's time as Acting President and he retired. He sat on the High Council as an Independent councillor, unaffiliated with President Niroc. The Sixth and Eighth Doctors selected him when arranging an inquiry in the Sixth Doctor's trial, reasoning that he might be old but he possessed a clearer knowledge of the Matrix than any other. (PROSE: The Eight Doctors)

Engin was again Keeper of the Matrix during the Last Great Time War. He spoke with Priyan about the Doctor's actions and how the War would end. (COMIC: Sky Jacks)

Behind the scenes

 * Engin appears (albeit regenerated) in NOTVALID: Incoming Transmission.