Chris Cwej
Biography
Christopher Rodonanté Cwej, usually just known as Chris Cwej, was one of the Seventh Doctor's later companions. His surname should technically be pronounced "Shvay", but he pronounces it "Kwedge" rather than keep correcting people.
Chris was born in 2954 to a family who lived in the lower levels of the Overcity, and which had a long association with the Adjudicators. Adjudicators are the police force of 30th century Earth, which was at that time divided into the Overcity and the Undercity. Chris is tall, blonde and muscular, and when he and his adjudicator partner Roz Forrester first met the Doctor and Bernice, he had had a "body bepple" (bodily alteration) which made him look like a teddy bear.
He and Roz were investigating a murder case in Undercity in the year 2975 when they encountered the Doctor and Bernice. They helped the Doctor defeat his old enemy Tobias Vaughn (NA: Original Sin).
Chris and Roz travelled with the Doctor for many adventures. In this eventful period, Chris fathered two daughters: Jasmine Surprise Cwej-Hutchings with Ishtar Hutchings, and iKrissi with Dep of the People. After Roz's death in battle, Chris continued to travel with the Doctor for a short time. The Doctor and Chris travelled to the Doctor's home planet of Gallifrey, where the Doctor faced members of his House and many dark secrets were revealed. After this, Chris decided to travel alone using a time ring given to him by Romana (NA: Lungbarrow).
After the Doctor
At some point after leaving the Doctor Chris was frozen in cryogenic suspension by the Knights of Jeneve, and placed on a planet in the Ardethe System. His memories were partially effected by the cryogenic process, however in time he did come to recall most of his original memories. (BNA: Deadfall)
Work for the Time Lords
Chris Cwej then (at some point following his awakening) went on to become an agent for the Time Lords (sometime around 2595). His biochemisty was altered by the Time Lords giving him the ability to travel in time, however they also altered Chris' memories of his time with the Doctor. Those memories were altered to make him think he had been abducted from Earth by the "evil renegade", and to think that it was the Doctor who had killed Roz Forrester. Chris worked for the Time Lords in securing the universe in a bottle and open a gateway for the Time Lords to invade and destroy a bottle universe version of 1970 Earth(BNA: Dead Romance)
Whilst in the universe in the bottle Chris was exposed to lethal amounts of radiation, and regenerated. His new body was shorter than his original, quite stocky, with dark hair and a mellow sounding voice. (BNA: Dead Romance, Tears of the Oracle) However, after an encounter with the Ferutu, he was reverted down his personal time line to age 13 and regained his original body (Twilight of the Gods).
It was later revealed that not only had the Great Houses deliberately altered Cwej's timeline and biodata, they were using alternate copies of him from different timelines as soldiers in their war with the mysterious "Enemy". These "Cwejen" existed in three types: the original (blond and handsome) "Cwej-Prime", the fat and balding Cwej-Plus, and the monstrous and heavily armored Cwej-Magnus. Each type existed in multiple iterations, which the Great Houses intended to use as an "Army of One." One of the Cwejen was present at a mysterious incident in the Hollywood Bowl, which may have been a point of contact with the Enemy.
Behind the Scenes
Following the New Adventure and Bernice Summerfield novels, Chris next appeared in The Book of the War, an encyclopedia detailing the "War in Heaven" in the Faction Paradox spin-off stories. The Faction Paradox line was based on ideas created for line of BBC Eighth Doctor Adventures, and contained many ideas and characters which had their roots in Doctor Who novels or television. However, many of these concepts were changed for legal and creative reasons -- for example, the Time Lords became the "Great Houses". The continuities of the Faction stories and the BBC novels have diverged somewhat, and whether they can be reconciled is no longer clear.
Chris does not appear by name in the subsequent Faction Paradox novels, but a character who strongly matches his description appears as an agent of the Great Houses in Lance Parkin's Warlords of Utopia. This individual calls himself "Herr Abschrift", German for "Mr. Copy", suggesting that he is a copy of the original Cwej.