Theory:Timeline - Companions

This page lists companions in the order they joined the Doctor on adventures. This timeline is based upon observations of the Doctor Who universe and the events that occur during each of these stories. From these observations, we have attempted to build a concise timeline.

Format:
 * MEDIUM: Major: "Multi-story" companions who have a number of consecutive stories with the Doctor.
 * MEDIUM: Minor: "Narratively ambiguous", "single adventure", and "multi-adventure" companions.

First Doctor

 * PROSE: Badger
 * TV: The Master
 * TV: The TARDIS
 * TV: Susan Foreman
 * PROSE: Amy Barker
 * PROSE: Tony Barker
 * PROSE: Alan Mortimer
 * PROSE: George Mortimer
 * PROSE: Helen Mortimer
 * PROSE: Ida Mortimer
 * PROSE: Shivani Bajwa
 * TV: Barbara Wright
 * TV: Ian Chesterton
 * TV: Vicki Pallister
 * TV: Steven Taylor
 * PROSE: Robert Zierath
 * TV: Katarina
 * TV: Bret Vyon
 * TV: Sara Kingdom
 * AUDIO: Oliver Harper
 * PROSE: Rebecca Nurse
 * PROSE: Gordon Hamilton
 * PROSE: Harroll Strong
 * PROSE: Jack Strong
 * PROSE: Dot Strong
 * PROSE: Chertzog
 * PROSE: Hill
 * PROSE: Shelly
 * COMIC: John Who
 * COMIC: Gillian Who
 * TV: Dodo Chaplet
 * TV: Ben Jackson
 * TV: Polly Wright

Unplaced

 * GAME: River Song
 * PROSE: Irving Braxiatel

Second Doctor

 * TV: Ben Jackson
 * TV: Polly Wright
 * TV: Jamie McCrimmon
 * TV: Victoria Waterfield
 * TV: Alistair Gordon Lethbridge-Stewart
 * TV: John Benton
 * TV: Zoe Heriot
 * AUDIO: H.G. Wells
 * COMIC: John Who
 * COMIC: Gillian Who
 * COMIC: Barnabus
 * PROSE: Winston Churchill
 * PROSE: Serena

Unplaced

 * GAME: River Song

Third Doctor

 * TV: Liz Shaw
 * TV: The Brigadier
 * TV: John Benton
 * TV: Mike Yates
 * COMIC: Tom Streeter
 * TV: Jo Grant
 * PROSE: "Beryl Reid" Iris Wildthyme
 * COMIC: Charlie Fisher
 * COMIC: Dave Lester
 * COMIC: Theophilus Tolliver
 * COMIC: Finney
 * COMIC: Brod
 * COMIC: Lammers
 * COMIC: Nick Willard
 * COMIC: Arnold
 * PROSE: Winston Churchill
 * AUDIO: Joshua Douglas
 * TV: Sarah Jane Smith
 * AUDIO: Jeremy Fitzoliver

Unplaced

 * GAME: River Song

Fourth Doctor

 * TV: Sarah Jane Smith
 * TV: Harry Sullivan
 * TV: The Brigadier
 * TV: John Benton
 * PROSE: "Beryl Reid" Iris Wildthyme
 * AUDIO: River Song
 * PROSE: Andric
 * GAME: The Graak
 * PROSE: Liz Shaw
 * COMIC: Joan Brown
 * COMIC: Maxwell-Lennon
 * COMIC: Miss Young
 * PROSE: Milena
 * TV: Leela
 * TV: Henry Gordon Jago
 * TV: George Litefoot
 * TV: K9 Mark I
 * AUDIO: Fenella Wibbsey
 * AUDIO: Mike Yates
 * COMIC: Tiger Maratha
 * AUDIO: "Ann Kelso"
 * TV: K9 Mark II
 * TV: Romana I
 * TV: Romana II
 * TV: Duggan
 * COMIC: Sharon Davies
 * TV: Adric
 * PROSE: K9 Mark III
 * TV: Nyssa
 * TV: Tegan Jovanka

Fifth Doctor

 * TV: Adric
 * TV: Nyssa
 * TV: Tegan Jovanka
 * TV: Richard Mace
 * COMIC: Justin of Wells
 * COMIC: Shayde
 * COMIC: Maxwell Edison
 * COMIC: Angus Goodman
 * AUDIO: Alayna
 * AUDIO: Robert McIntosh
 * AUDIO: Thomas Brewster
 * AUDIO: Hannah Bartholemew
 * AUDIO: Brooke
 * AUDIO: River Song
 * AUDIO: Jenny
 * AUDIO: Marcipor
 * TV: Vislor Turlough
 * TV: Kamelion
 * PROSE: Will Chandler
 * PROSE: Jane Hampden
 * PROSE: "Katy Manning" Iris Wildthyme
 * TV: Peri Brown
 * AUDIO: Erimem
 * AUDIO: Abby

Unplaced

 * PROSE: Winston Churchill

Sixth Doctor

 * TV: Peri Brown
 * PROSE: Winston Churchill
 * TV: H.G. Wells
 * AUDIO: Joe Carnaby
 * AUDIO: Victoria Waterfield
 * AUDIO: Heather Threadstone
 * COMIC: Frobisher
 * PROSE: Grant Markham
 * PROSE: "Katy Manning" Iris Wildthyme
 * AUDIO: Evelyn Smythe
 * AUDIO: The Brigadier
 * AUDIO: Thomas Brewster
 * AUDIO: Jason
 * AUDIO: Crystal
 * AUDIO: Zog
 * PROSE: Emily Chaudhry
 * PROSE: Will Hoffman
 * AUDIO: Charley Pollard
 * AUDIO: Patricia Menzies
 * AUDIO: Mila
 * AUDIO: "Jamie McCrimmon"
 * AUDIO: Zoe Heriot
 * AUDIO: Henry Gordon Jago
 * AUDIO: George Litefoot
 * AUDIO: Flip Jackson
 * AUDIO: Constance Clarke
 * AUDIO: Kybo
 * AUDIO: River Song
 * AUDIO: "Mathew Sharpe"
 * AUDIO: Jack Harkness
 * TV: Melanie Bush

Unplaced

 * TV: Sabalom Glitz

Seventh Doctor

 * TV: Mel Bush
 * TV: Ace
 * TV: The Brigadier
 * COMIC: Frobisher
 * COMIC: Olla
 * COMIC: Ly-Chee
 * COMIC: Abslom Daak
 * COMIC: Sarah Jane Smith
 * AUDIO: Raine Creevy
 * PROSE: Bernice Summerfield
 * PROSE: Sherlock Holmes
 * PROSE: John Watson
 * PROSE: Chris Cwej
 * PROSE: Roz Forrester
 * PROSE: Badger
 * PROSE: Leela
 * PROSE: K9 Mark I
 * PROSE: Romana II
 * PROSE: K9 Mark II
 * AUDIO: Bev Tarrant
 * AUDIO: Hex
 * PROSE: "Katy Manning" Iris Wildthyme
 * PROSE: Evelyn Smythe
 * AUDIO: Sally Morgan
 * AUDIO: Lysandra Aristedes
 * AUDIO: River Song
 * AUDIO: Mags
 * AUDIO: Elizabeth Klein
 * AUDIO: Will Arrowsmith
 * PROSE: Catherine Broome
 * AUDIO: Winston Churchill

Unplaced

 * TV: Sabalom Glitz

Eighth Doctor

 * TV: Grace Holloway
 * TV: Chang Lee
 * PROSE: Sam Jones
 * PROSE: Edward Fyne
 * PROSE: Bernice Summerfield
 * PROSE: The Brigadier
 * COMIC: Stacy Townsend
 * COMIC: Ssard
 * PROSE: Evelyn Chan
 * PROSE: George Litefoot
 * PROSE: Susan Campbell
 * PROSE:
 * PROSE: Fitz Kreiner
 * PROSE: Sarah Jane Smith
 * PROSE: K9 Mark III
 * PROSE: Compassion
 * PROSE:
 * PROSE: Lorenzo Smitt
 * PROSE: Harry Sullivan
 * PROSE: Delilah
 * PROSE: Frank
 * PROSE: Claudia Marwood
 * PROSE: Deborah Castle
 * PROSE: Jemima-Katy
 * PROSE: Miranda Dawkins
 * PROSE: Nina
 * PROSE: Anji Kapoor
 * PROSE:
 * PROSE: Trix MacMillan
 * COMIC: Izzy Sinclair
 * COMIC: Maxwell Edison
 * COMIC: Fey Truscott-Sade
 * COMIC: Shayde
 * COMIC: Kroton
 * COMIC: Ray Stobbs
 * COMIC: Billy Wilkins
 * COMIC: Ediphis
 * COMIC: "Penny Chapman"
 * COMIC: John Who
 * COMIC: Gillian Who
 * COMIC: Destrii
 * AUDIO: Samson Griffin
 * AUDIO: Gemma Griffin
 * AUDIO: Mary Shelley
 * WC: Romana II
 * WC: K9 Mark II
 * AUDIO: Charley Pollard
 * AUDIO: C'rizz
 * PROSE: Bazima
 * PROSE: Ayfai
 * AUDIO: Lucie Miller
 * AUDIO: Tamsin Drew
 * AUDIO: Daphne
 * AUDIO: Alex Campbell
 * AUDIO: Molly O'Sullivan
 * AUDIO: Liv Chenka
 * AUDIO: Helen Sinclair
 * AUDIO: River Song
 * AUDIO: The Eleven
 * COMIC: Josie Day
 * AUDIO: Todd
 * AUDIO: Rita
 * COMIC: Chantir
 * AUDIO: Ria
 * AUDIO: Nyssa
 * AUDIO: Sheena
 * AUDIO: Bliss

War Doctor

 * COMIC: Fey Truscott-Sade
 * COMIC: Ohila
 * COMIC: Petrella
 * COMIC: The Squire
 * COMIC: The Master
 * COMIC: Alice Obiefune
 * AUDIO: Ollistra
 * AUDIO: Rejoice
 * COMIC: Siatak
 * AUDIO: Collis
 * AUDIO: Heleyna
 * AUDIO: Crane
 * AUDIO: Kruger
 * AUDIO: Kalan
 * AUDIO: Muren
 * AUDIO: Leela
 * AUDIO: Rosata Laxter
 * COMIC: Dorium Maldovar
 * PROSE: Cinder
 * TV: Bad Wolf

Ninth Doctor

 * AUDIO: Winston Churchill
 * PROSE: Ali
 * TV: Rose Tyler
 * TV: Adam Mitchell
 * TV: Jack Harkness
 * TV: Mickey Smith
 * COMIC: Martha Jones
 * COMIC: Harry Sullivan
 * COMIC: The Brigadier
 * COMIC: John Benton
 * COMIC: Tara Mishra
 * COMIC: Vastra
 * COMIC: Jenny Flint

Tenth Doctor

 * TV: Rose Tyler
 * TV: Mickey Smith
 * TV: Sarah Jane Smith
 * TV: K9 Mark III
 * TV: Jackie Tyler
 * COMIC: Grayla
 * COMIC: Jayne Kadett
 * COMIC: The Brigadier
 * TV: Martha Jones
 * TV: Jack Harkness
 * TV: Astrid Peth
 * PROSE: Mai Kondo
 * AUDIO: Winston Churchill
 * TV: Donna Noble
 * TV: Jenny
 * TV: River Song
 * AUDIO: Sylvia Noble
 * PROSE: Gisella
 * COMIC: Heather McCrimmon
 * COMIC: Wolfgang Ryter
 * TV: Jackson Lake
 * TV: Rosita Farisi
 * TV: Christina de Souza
 * PROSE: Alsa
 * PROSE: Nikki Jupiter
 * PROSE: Rok Ma
 * PROSE: June
 * PROSE: Koral
 * PROSE: Jon Bowman
 * PROSE: Christina de Souza 2.0
 * TV: Luke Smith
 * TV: Clyde Langer
 * TV: Rani Chandra
 * PROSE: Jake Carstairs
 * PROSE: Vienna Carstairs
 * PROSE: Wallace Fitch
 * PROSE: Kate Maguire
 * PROSE: Emily Parr
 * PROSE: Darke
 * COMIC: Gabby Gonzalez
 * COMIC: Cindy Wu
 * COMIC: Cleopatra Hunsicker
 * COMIC: Noobis
 * COMIC: Marcie
 * COMIC: Majenta Pryce
 * COMIC: Emily Winter
 * COMIC: Matthew Finnegan
 * TV: Adelaide Brooke
 * PROSE: Brian
 * TV: Queen Elizabeth I
 * TV: Cassie Rice
 * TV: Jimmy Stalkingwolf
 * AUDIO: Sugar MacAuley
 * COMIC: Wilfred Mott
 * AUDIO: George Litefoot

Unplaced

 * COMIC: Dalek Prime Strategist

Eleventh Doctor

 * TV: Amy Pond
 * TV: Winston Churchill
 * TV: River Song
 * TV: Rory Williams
 * TV: Craig Owens
 * TV: Vincent van Gogh
 * TV: Sarah Jane Smith
 * TV: Jo Jones
 * TV: Luke Smith
 * TV: Clyde Langer
 * TV: Rani Chandra
 * AUDIO: Henry Gordon Jago
 * TV: Kazran Sardick
 * TV: Abigail Pettigrew
 * COMIC: Alice Obiefune
 * COMIC: John Jones
 * COMIC: ARC
 * COMIC: Abslom Daak
 * COMIC: The Squire
 * COMIC: The Sapling
 * TV: Canton Everett Delaware III
 * TV: Richard Nixon
 * TV: Vastra
 * TV: Jenny Flint
 * TV: Strax
 * COMIC: Kevin
 * COMIC: Jean-Luc Picard
 * TV: Alfie Owens
 * TV: Dorium Maldovar
 * PROSE: Henrik
 * PROSE: Freydis
 * PROSE: Edward Anderson
 * PROSE: Nefertiti
 * TV: John Riddell
 * TV: Brian Williams
 * TV: Christina de Souza
 * COMIC: Decky Flamboon
 * PROSE: Sabel Blakely
 * PROSE: Jenibeth Blakely
 * PROSE: Ollus Blakely
 * COMIC: Barbara Wright
 * COMIC: Ian Chesterton
 * PROSE: Olga Bordmann
 * AUDIO: Alice Watson
 * TV: Clara Oswald
 * COMIC: Amy Johnson
 * TV: Angie Maitland
 * TV: Artie Maitland
 * COMIC: Adam Mitchell
 * AUDIO: Lily Arwell
 * COMIC: Ally
 * TV: Petronella Osgood
 * TV: Handles
 * PROSE: Theol Willoughby
 * TV: Barnable

Twelfth Doctor

 * TV: Clara Oswald
 * TV: Vastra
 * TV: Jenny Flint
 * TV: Strax
 * PROSE: 78351
 * TV: Courtney Woods
 * TV: Rigsy
 * AUDIO: Danny Pink
 * TV: Zygon Osgood
 * TV: Kate Stewart
 * WC: Ohila
 * TV: Bors
 * PROSE: Bernice Summerfield
 * PROSE: Peter Summerfield
 * PROSE: Ruth Leonidas
 * PROSE: Jack McSpringheel
 * PROSE: Clive "CJ" Finch
 * TV: Ashildr
 * TV: Petronella Osgood
 * TV: Bonnie Osgood
 * COMIC: Athena
 * COMIC: Maxwell Edison
 * COMIC: Frobisher
 * COMIC: Majenta Pryce
 * COMIC: Destrii
 * COMIC: Izzy Sinclair
 * COMIC: Sharon Allen
 * COMIC: Gabby Gonzalez
 * COMIC: Hattie Munroe
 * COMIC: Jess Collins
 * COMIC: Devina Collins
 * COMIC: Lloyd Collins
 * COMIC: Maxwell Collins
 * COMIC: Estrella
 * COMIC: George V
 * COMIC: Eliza Jones
 * COMIC: Jain Relph
 * COMIC: Heddy Garber
 * TV: Andrea Quill
 * COMIC: Jata
 * COMIC: Gaz
 * COMIC: Julie d'Aubigny
 * COMIC: Sonny Robinson
 * COMIC: Val Kent
 * AUDIO: Alex Yow
 * AUDIO: Brandon Yow
 * TV: River Song
 * TV: Nardole
 * COMIC: The Ghost
 * COMIC: Lucy Fletcher
 * COMIC: Jennifer Fletcher
 * TV: Bill Potts
 * COMIC: Fey Truscott-Sade
 * COMIC: Shayde
 * COMIC: Kenossium
 * COMIC: Bass Reeves
 * COMIC: Totika
 * COMIC: Jenny
 * TV: Missy
 * TV: Archibald Hamish Lethbridge-Stewart

Thirteenth Doctor

 * TV: Graham O'Brien
 * TV: Grace O'Brien
 * TV: Ryan Sinclair
 * TV: Yasmin Khan
 * COMIC: Leon Perkins
 * COMIC: Irene Schulz
 * COMIC: Hero robot
 * TV: Aaron Sinclair
 * COMIC: The Corsair
 * TV: Ada Lovelace
 * TV: Noor Inayat Khan
 * COMIC: Tommy Dalton
 * COMIC: Hank Dalton
 * TV: Jake Willis
 * TV: Adam Lang
 * TV: Gabriela Camara
 * TV: Tahira
 * PROSE: Dorothy McShane
 * PROSE: Lizzie

Unplaced

 * COMIC: ''Skithra Queen