Adelaide Brooke

Adelaide was a companion of the the Doctor. (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.
 * At age 59, Lindsay Duncan will be the oldest actress to date to play a new Doctor Who companion; it's not yet known whether her character will be depicted of similar age.
 * The BBC has yet to announce the character's full name.