Donna Noble. Portrayed by British actress and comedian Catherine Tate, she is a companion of the Tenth Doctor (David Tennant). Originally appearing in the closing scene of the show's 2006 series and as a special guest star in its following Christmas special, "The Runaway Bride", Tate was not expected to reprise her role as Donna; for series 3 (2007), the Doctor travelled alongside medical student Martha Jones (Freema Agyeman). Although she at first finds alien time traveller the Doctor terrifying, their initial encounter leaves her unsatisfied with her normal life and she decides to travel alongside him when the next opportunity arises. Donna becomes an asset to the Doctor on his adventures and it is she who ultimately saves the universe in the series 4 finale, although tragically at the cost of the memories of her travels with the Doctor. In a contrast to the Tenth Doctor's prior companions, who both harboured romantic feelings for him, Donna and the Doctor shared a strictly friendly relationship; and she did not feel the need to prove herself to be allowed to travel with the Doctor, who refers to her as his "best mate".
Donna Noble travels with the Doctor.
Donna Noble. Portrayed by British actress and comedian Catherine Tate, she is a companion of the Tenth Doctor (David Tennant). Originally appearing in the closing scene of the show's 2006 series and as a special guest star in its following Christmas special, "The Runaway Bride", Tate was not expected to reprise her role as Donna; for series 3 (2007), the Doctor travelled alongside medical student Martha Jones (Freema Agyeman). Although she at first finds alien time traveller the Doctor terrifying, their initial encounter leaves her unsatisfied with her normal life and she decides to travel alongside him when the next opportunity arises. Donna becomes an asset to the Doctor on his adventures and it is she who ultimately saves the universe in the series 4 finale, although tragically at the cost of the memories of her travels with the Doctor. In a contrast to the Tenth Doctor's prior companions, who both harboured romantic feelings for him, Donna and the Doctor shared a strictly friendly relationship; and she did not feel the need to prove herself to be allowed to travel with the Doctor, who refers to her as his "best mate".

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Donna Noble travels with the Doctor.
Donna Noble. Portrayed by British actress and comedian Catherine Tate, she is a companion of the Tenth Doctor (David Tennant). Originally appearing in the closing scene of the show's 2006 series and as a special guest star in its following Christmas special, "The Runaway Bride", Tate was not expected to reprise her role as Donna; for series 3 (2007), the Doctor travelled alongside medical student Martha Jones (Freema Agyeman). Although she at first finds alien time traveller the Doctor terrifying, their initial encounter leaves her unsatisfied with her normal life and she decides to travel alongside him when the next opportunity arises. Donna becomes an asset to the Doctor on his adventures and it is she who ultimately saves the universe in the series 4 finale, although tragically at the cost of the memories of her travels with the Doctor. In a contrast to the Tenth Doctor's prior companions, who both harboured romantic feelings for him, Donna and the Doctor shared a strictly friendly relationship; and she did not feel the need to prove herself to be allowed to travel with the Doctor, who refers to her as his "best mate".

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Donna Noble travels with the Doctor.
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