- You may be looking for Cwejen.
Christopher Rodonanté "Chris" Cwej was a 30th century Adjudicator who travelled with the Doctor until he was recruited by the House Military. He became the template for the Army of One project, the Cwejen, and as such was designated "Cwej-One."
Chris' surname should have technically been pronounced "Shvey", but he pronounced it "Kwedge" rather than keep correcting people.
Chris was born in 2954 to a Mr and Mrs Cwej, who lived in the lower levels of the Overcity. They had a long association with the Adjudicators (the police force of 30th century Earth, at that time divided into the Overcity and the Undercity. Chris was tall, blonde and muscular. When his partner, Roz Forrester, and he first met the Doctor and Bernice Summerfield, he had had a body bepple which made him look like a giant animated teddy bear. (PROSE: 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. After this, Chris decided to travel alone using a time ring given to him by President Romana. (PROSE: Lungbarrow)
After the Doctor Edit
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 affected by the cryogenic process, but he was able to recall most of them in time. (PROSE: Deadfall)
Recruitment by the House Military Edit
Chris, at some point following his awakening, went on to become an agent for the House Military some time around 2595. His biochemistry was altered by the House Military, giving him the ability to travel in time. The House Military also altered Chris's memories of his time with the Seventh Doctor. Those memories were changed 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 House Military in securing the bottle universe and opening a gateway for the Great Houses to invade and destroy the bottle universe version of 1970 Earth. During this time, he also negotiated an alliance with the Daleks on Skaro. (PROSE: Dead Romance)
Whilst in the universe in the bottle, Chris was exposed to lethal amounts of radiation. (PROSE: Dead Romance) His new body was shorter than his original, quite stocky, with dark hair and a mellow voice. (PROSE: Tears of the Oracle) However, after an encounter with the Ferutu, he was reverted down his personal timeline to age thirteen and regained his original body. (PROSE: Twilight of the Gods) Chris was present at the birth of Benny's son, Peter, looking "decidedly older than Benny last saw him." (PROSE: The Glass Prison)