Sebastian Vaughan

Sebastian Vaughan was a member of Torchwood Three.

Early life
Sebastian was born to Lady Madeline Vaughan and her husband. He was raised at Rockfell Hall and had a nanny when he was a child, who he hid from under a bench in the chapel. He was only ever scared of the dark and slept with a night-light on even as a teenager. He named the family's dog Blücher and was an enthusiastic student of history, particularly the Battle of Waterloo in which his ancestor and idol Major Charles Vaughan had taken part. His lineage was important to him.

Sebastian's father worked at Lodmoor Research Facility for the Ministry of Defence before being promoted to Cabinet minister. He wanted Sebastian to join MI5 but arranged for him to join Torchwood Three after learning of the institute. Sebastian wanted to serve his country and came to work under Jack Harkness in Cardiff. (AUDIO: The Vigil)

Career at Torchwood
At the time that Sebastian began working at Torchwood, Suzie Costello, Toshiko Sato, Owen Harper and Ianto Jones had all been hired. Despite this, he felt comfortable accusing Tosh of doing things wrong even when concerning matters that she specialised in. He also insisted that she finish her report on cortex leeches and put it on Suzie's desk despite her having just logged off to go home whilst he was at a rugby dinner with "the chaps".

Sebastian and Tosh went on a mission together to catch a cortex leech. People almost died because Sebastian missed the security meeting and made a mistake. He knew that Tosh had met with Jack to discuss the issue and he himself was called in to give his side of the story. He was afraid that Tosh was attempting to embarrass him in front of their colleagues.

The two went on a similar mission in which they failed to locate a leech. He claimed that the kit that Tosh made him carry merely slowed him down and that it was pointless. Whilst the two were working late, he brought her food from a Chinese takeaway that Ianto had shown him, not realising that she was Japanese and insisting that it was all the same. (AUDIO: The Vigil)

Death and post-mortem
Feeling responsible for Sebastian's death, Tosh took his body to Rockfell Hall. Lady Vaughan had his body placed in the chapel and lit candles due to his fear of the dark. His parents arranged for a private funeral after which he would be buried on the grounds. (AUDIO: The Vigil)

Personality
The dark was the only thing that Sebastian was ever scared of. He continued to sleep with a night-light even when he was a teenager. He was worried about being made a fool of in front of other people. (AUDIO: The Vigil)