Christina de Souza

"It's Christina. Lady Christina de Souza to be precise."

Lady Christina de Souza once adventured with the Doctor on the planet San Helios. At the conclusion of that incident, he firmly rejected her request to become a full-time traveling companion. Consequently, she was one of the few people to whom the Doctor denied even one trip in his TARDIS.

Biography
Lady Christina de Souza was a notorious thief who stole for the thrill of it, being bored with her aristocrat upbringing. By the time she met the Doctor, Christina has already built a considerable reputation and was relentlessly pursued by Detective Inspector Macmillan.

At Easter 2009, she stole the prized Cup of Athelstan from the International Gallery in London. However, her calling card (a mechanical golden cat waving in a mocking manner) alerted the guards to her presence and her associate was quickly found and arrested (without much concern on Christina's part). Unable to find a way to distance herself from the museum, due to the high number of police officers afoot, she was forced to use the 200 bus as an escape vehicle, bribing the driver with her diamond earrings for passage. She soon met the Doctor, initially dismissing him due to his somewhat erratic behaviour; however, once the bus is caught up in a wormhole and deposited on an alien planet (as well as establishing herself as the leader of the group), she deferred to the Doctor's knowledge, as she recognised that he was the most alert of the situation. The many tools in her backpack proved to be of great use to the group, which included a shovel to dig out the bus wheels, a hatchet to cut away the seats (so they could be used as traction for the wheels), a mechanical winch for her heists, and a hammer.

During the time that she spent with the Doctor, Christina became very comfortable with him, and vice-versa, and felt a sense of adventure and excitement with him that exceeded any heist that she had pulled off before. Against the Doctor's wishes, she winched down a shaft in the Tritovore's ship to collect the anti-gravity clamps and their power crystal (nearly electrocuting herself with the ship's defence grid in her haste). She inadvertently woke an inactive alien in the ship's hull with her body heat. Swiftly collecting the clamps, she travelled back up the shaft with the alien at her heels, though she successfully lost it after she reactivated the defence grid on her way up. She attempted to convince the Tritovores to come with them on the 200 bus, saying that they could be found a new home, but was unable to do anything to prevent their death.

Her earlier heist proved to be invaluable as the Cup of Athelstan was made of gold and, with more than a little aversion on her part, served as a perfect conduit for the anti-gravity clamps, as they alone were incompatible with the bus. However, the cup was mangled by the Doctor in the process to make it the right shape, earning some of Christina's ire. With the clamps fixed on the bus, the Doctor piloted the now flying bus through the wormhole and, upon returning to Earth, was kissed by Christina (her previous ire forgotten and forgiven).

After returning to the ground, Christina broke away from UNIT security, expecting to travel with the Doctor as a companion, only for her request to be coldly turned away, as the Doctor revealed he had been too hurt by losing his previous companions and wasn't willing to lose another. Christina was shortly arrested by the police for her previous actions and taken away. However, the Doctor used his sonic screwdriver to unlock her handcuffs and, upon her realising this, Christina escaped the police car and ran to the bus, closing the door before the police could capture her again. Flying the bus to the Doctor, Christina happily told the Doctor that they "could have been so good together", revealing no hard feelings over her rejection, the Doctor similarly replied "Christina, we were", both of them smiling each other off. Christina then flew the bus into the night sky, the passengers on the ground cheering her on. The Doctor left soon afterwards. (DW: Planet of the Dead)

Personality
Christina was fiercely independent and was not beyond going against the Doctor's wishes. She was an expert thief but only stole things for the adrenaline rush. She was bored of her aristocratic life and sometimes showed a high opinion of herself. She also used her obvious charms and good looks to win people over, sometimes for selfish reasons. She showed great enthusiasm in joining the Doctor on his travels, but quickly forgave him when he refused. She could also speak French fluently, which amused the Doctor. She has somewhat of an untrustworthy streak in her, as she is seen abandoning her partner in crime (who is possibly also her lover) when he is caught by guards during her escape from the museum.

Equipment

 * Winch
 * Hammer
 * Axe
 * Spade
 * Japanese Lucky Cat (calling card)
 * Torch/ Flashlight
 * Last seen in possession of a flying double-decker bus

Other
Apparently Lady Christina at some point learned the Doctor's superphone number, as during a later adventure the Doctor answered the phone thinking it was her. (IDW: Tesseract)

Behind the Scenes
For a time in 2009 press speculation held that this character was going to be the first companion of the Eleventh Doctor. This rumor was put to rest after the casting of Karen Gillan as Amy Pond.

The precise manner in which the Doctor rejects Christina as a companion is interesting because it doesn't have much precedence in the history of televised Doctor Who. There have been times — as with Ian, Barbara, and Leela — when the Doctor has verbally rejected a companion, but been physically unable to stop their entry into the TARDIS. There have been other times — as with Captain Jack and Adam Mitchell — when a companion has been invited at one point, but then specifically denied at another. There have been several occasions on which permission was neither given nor sought, as with the stowaways Steven Taylor, Zoe Heriot, Sarah Jane Smith, and Adric. And there have been some guest-starring characters — such as H. G. Wells — who have been for a trip in the TARDIS, asked to stay on board, and been denied.

But what Christina does is different. She asks for initial entry into the TARDIS for the purpose of indefinite travel with the Doctor, and is denied. As of February 2010 the only other televised character that could be said to share this distinction is Bayldon Copper. The two characters also share the distinction of never having set foot inside the TARDIS, even once.