Peter Davison is on a new journey to discover everything he can about the Doctor's Companion. What exactly is a companion's role, how do you actually become a companion, what do they have in common and how have the companions changed over the years?
Peter Davison
as Self / The Doctor (archive footage)
Freema Agyeman
as Self / Martha Jones (archive footage)
Colin Baker
as Self / The Doctor (archive footage)
Tom Baker
as Self / The Doctor (archive footage)
John Barrowman
as Self / Captain Jack Harkness (archive footage)
Peter Capaldi
as Self / The Doctor (archive footage)
Nicola Bryant
as Self / Peri Brown (archive footage)
Noel Clarke
as Self / Mickey Smith (archive footage)
Gavin Conrad
as
Jenna Coleman
as Self / Clara Oswald (archive footage)
Janet Fielding
as Self / Tegan Jovanka (archive footage)
Martin Friend
as
