Biography
Donna Noble is the daughter of Geoff Noble and Sylvia Noble. On her first day at school, she was sent home for biting.
Donna missed the Sycorax invasion due to a hangover, and missed the Cybermen invasion because she was on holiday in Spain. Because of this, she was unprepared for the possibility of the existence of alien life when she first encountered it.
In 2007, Donna began working as a temporary secretary at H.C. Clements, a security firm. There she met and fell in love with Lance Bennett, whom she eventually got to propose to her. While she planned the wedding, she was unaware that Lance was dosing her coffee with with huon particles on the orders of the Empress of the Racnoss.
On 24th December 2007, Donna was was walking down the aisle to marry Lance when she was abruptly teleported to the Doctor's TARDIS. The Doctor took her back to London, where she tried to catch a taxi but couldn't because the drivers thought she was drunk. While the Doctor went to get cash, Donna was picked up by a taxi driven by a Robot Santa who trapped her in the back. The Doctor rescued her by flying the TARDIS, opening the doors and persuading her to jump despite her being scared. Donna then asked the Doctor if she could go to the reception of her own wedding.
At the reception, Robot Santas came and searched for her, then a Robotic Christmas Tree began firing explosives at people. After the Doctor saved everyone, he, Donna and Lance decided to investigate H.C. Clements, where they learned that Lance was helping the Empress of the Racnoss in her plans to conquer Earth. Donna assisted the Doctor in defeating the Empress, but turned down his offer to travel with him. (DW: The Runaway Bride)
Personality
Donna was rude, bossy, and boisterous. She constantly insulted the Doctor, especially after learning that he was an alien. But she truly did love Lance, and was absolutely heartbroken and in tears when she learnt he was using her.
Behind the Scenes
She will return in Series 4 for the full series as a companion. She will track down the Doctor during an alien emergency in "Partners In Crime", and begin her travels by visiting Pompeii on the eve of destruction, and travelling to the "Planet of the Ood", before meeting the Sontarans and Martha Jones in a story titled "The Sontaran Stratagem", and murder mystery novelist Agatha Christie in another episode. She will leave the show at the end of Series 4, according to Catherine Tate.