Adelaide Brooke

"Don't drink the water. Don't even touch it. Not one drop."

- Adelaide

Captain Adelaide Brooke was a companion of the the Doctor. She was head of Bowie Base 1 on Mars in the year 2059, which came under siege by a water-based entity called The Flood. (DW: The Waters of Mars)

Early Life
When Adelaide was a child, the Daleks moved Earth to the Medusa Cascade; she did not know this but her mother was out at the time. Her father went out to look for her, he told her to stay at her house so that she would be safe. A Dalek was about to attack her but when it saw her it did not. Her parents though never came back. The Doctor said the reason the Dalek spared her though was because she was important in human history and if it had killed her as a child it would have altered human history. (DW: The Waters of Mars)

First human to land on Mars
In 2058 when Adelaide was now a mother and a grandmother. She headed a team of humans to Mars. She had contact with Earth due to video link. This was a big part in human history and one of the most memorable moments for the humans. (DW: The Waters of Mars)

Meeting the Doctor
After the first 17 months of success, Two of her crew were taking over by The Flood. At that very same moment the The Doctor arrived he realised that he was interfering with human history. Adelaide and the Doctor helped evacuate the crew to the rocket. She told the Doctor of her life the day her parents died in 2009 due to the Daleks. After many of her crew were taken by the flood she set the base to self destruct. Though the Doctor saved Mia Bennett, Yuri Kerenski and her she was angry with him. He took her to her house via the Tardis. She went inside her house, she thought that her supposed death on Mars was a fixed point in time. She shot her self with guilt and died. (DW: The Waters of Mars)

Behind the Scenes

 * On 19 February 2009, the BBC announced that Lindsay Duncan would play Adelaide in the second of the Doctor Who specials that will be aired in 2009. She has been stated to be playing "the Doctor's most strong-minded companion yet."
 * As with Michelle Ryan's character, Christina de Souza, who appears in the Planet of the Dead special, it has not yet been announced whether Adelaide is intended to be a one-off companion along the lines of Astrid Peth or (initially) Donna Noble or if she will appear in more of the specials or continue on into the Matt Smith era. Duncan has not been seen on set filming for Series 5 or David Tennant's final Doctor Who serial, suggesting that she will only appear in this episode.
 * Actress Lindsay Duncan was 58 when she filmed the episode, making her the oldest actor to play a new televised companion at the time. The character's age isn't stated, but she's known to be in her fifties
 * Adelaide is one of only a few companions to die and the first to die without being "reborn" somehow in the new series.