Marnal

Marnal was a Time Lord. He was the previous owner of the Doctor's TARDIS. In his childhood, the Doctor considered Marnal to be his hero.

Biography
Marnal was the Castellan on Gallifrey before the Doctor left the planet. Marnal was sent by the Time Lords to the Shoal to investigate the threat of the Vore to Gallifrey. Marnal destroyed the Shoal after a meeting with Larna, a Time Lady from Gallifrey's future.

Marnal threatened to expose fellow Time Lord Ulysses' secret of having a hybrid son. Ulysses wiped Marnal's memory by using his TARDIS' telepathic circuits and dumped him on Earth in England, 1883. He was placed in the care of a Mrs. Gate. Under the name Marnal Gate, Marnal became a science fiction author, and met Mervyn Peake, who illustrated one of his novels, and H.G. Wells. Marnal had amnesia about Gallifrey and the Time Lords, but he remembered enough to write novels containing the entire history of Gallifrey; Marnal did not know that Gallifrey was a real place.

Marnal had a son on Gallifrey (possibly the Master), who visited him during the 1970's and told him that the Doctor was the renegade Time Lord who stole his TARDIS. He also had four adopted daughters on Earth from his wives' previous marriages, whom he described as parasites.

In 2005, he regenerated from his twelfth to his thirteen incarnation. The surge of artron energy restoring his synapses in the regeneration returned his memory.

His final incarnation was later killed by the Vore, who had invaded Earth. Before he died, the Eighth Doctor told him that he was his childhood hero. (EDA: The Gallifrey Chronicles)

Works
Marnal's novels include:
 * The Kraglon Inheritance
 * The Witch Lords
 * The Emergents
 * The Giants
 * The Hand of Time (published in 1976)
 * The Time of Neman
 * The Beautiful People
 * Marnal's Journeys or the Modern Crusoe
 * Day of Wrath
 * The Monkey to Time saga (published in November 2001)
 * Valley of the Lost

He once wrote an episode of Star Trek, but it was subsequently altered so much that he removed his name from it. (EDA: The Gallifrey Chronicles)

Trivia

 * If Marnal is the Master's father, then he would have owned estates on Gallifrey's mountains (DW: The End of Time)
 * Many of Marnal's works are refrences to previous Doctor Who works. They include The Witch Lord (DW: State of Decay); The Giants (DW: The Giants); The Hand of Time (DW: The Hand of Fear ); The Monkey to Time Saga (possibly The Key to Time season ).
 * The Witch Lords was a title by Terrence Dicks for a serial back in 1977, but had to drop it in favour for DW: Horror of Fang Rock. Dicks eventually remade The Witch Lords in 1980, for DW: State of Decay.
 * The Hand of Time was originally the title of The Hand of Fear.