As Bradley Walsh, Mandip Gill and Tosin Cole are announced as the new companions to join Jodie Whittaker’s Doctor Who for the next series of the sci-fi classic, here is a run-down of the Time Lord’s sidekicks since the show’s 2005 revival.

    1. Rose Tyler (Billie Piper) travelled with the 9th and 10th Doctor in 2005.

    Doctor Who – Day of the Doctor
    Billie Piper and John Hurt as the War Doctor, an incarnation of the Time Lord (Adrian Rogers/BBC/PA)

    2. Mickey Smith (Noel Clarke) travelled with the 9th and 10th Doctor in 2005.

    3. Jack Harkness (John Barrowman) travelled with the 9th and 10th Doctor in 2005.

    4. Donna Noble (Catherine Tate) travelled with the 10th Doctor in 2006.

    Doctor Who
    David Tennant as the Doctor and Catherine Tate as Donna. (BBC/PA)

    5. Martha Jones (Freema Agyeman) travelled with the 10th Doctor in 2007.

    6. River Song (Alex Kingston) travelled with the 11th Doctor in 2008.

    7. Amy Pond (Karen Gillan) travelled with the 11th Doctor in 2010.

    Doctor Who
    Karen Gillan and Matt Smith as the Doctor (BBC/PA)

    8. Rory Williams (Arthur Darvill) travelled with the 11th Doctor in 2010.

    9. Clara Oswin Oswald (Jenna Coleman) travelled with the 11th and 12th Doctor in 2012.

    10. Nardole (Matt Lucas) travelled with the 12th Doctor in 2015.

    Doctor Who
    Peter Capaldi as the Doctor and his latest companion Pearl Mackie (Ray Burmiston/BBC/PA)

    11. Bill Potts (Pearl Mackie) travelled with the 12th Doctor in 2017.