Donna Noble is the companion of the Doctor played by David Tennant in 2011.
Donna was voted the second best companion of all time in Doctor Who Magazine Issue 414 and Issue 474
 In a contrast to the Tenth Doctor's prior companions, who both harboured romantic feelings for him, Donna and the Doctor shared a strictly platonic 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 friend"

