Doctor Who
Cast Roles: A
- A/B Girton (Rex Rowland in The Sea Devils: Episode Five)
 - Aaron (Daniel Adegboyega in Resolution)
 - Abbot of Amboise (3 episodes, e.g. William Hartnell in The Massacre: The Sea Beggar)
 - Abbott (David Purcell in The Hand Of Fear: Part One)
 - Abbott, The (James Greene in The Bells of Saint John)
 - Abby (Mimi Ndiweni in Oxygen)
 - Abdul (Hemi Yeroham in The Church On Ruby Road)
 - Abel, Lizzie (Bronté Barbé in Lux)
 - Abena (Michelle Asante in The Story & the Engine)
 - Abi Lerner (Vinette Robinson in 42)
 - Abigail (Michelle Tate in The Crimson Horror)
 - Abigail Naismith (2 episodes, e.g. Tracy Ifeachor in The End of Time: Part One)
 - Abigail Pettigrew (Katherine Jenkins in A Christmas Carol)
 - Able Seaman (2 episodes, e.g. Noel Fitzpatrick in Rise of the Cybermen)
 - Ablif (3 episodes, e.g. Ray Callaghan in The Invasion of Time: Part Three)
 - Aboriginal Dancer (8 episodes, e.g. Abi Couhard in Four To Doomsday: Part Two)
 - Abraham (Garrick Hagon in A Town Called Mercy)
 - Abraham Lincoln (Robert Marsden in The Chase: The Executioners)
 - Abramal (Rob Jarvis in The Time of the Doctor)
 - Abraxis Security Voice (Becky Trotman in A Town Called Mercy)
 - Abu (Terence Brown in The Krotons: Episode One)
 - Abubakar, Rashid (Stefan Adegbola in The Story & the Engine)
 - Academic (Claudia Blondeau in World War Three)
 - Accra Reporter (Nana Amoo-Gottfried in In The Forest Of The Night)
 - Ace (32 episodes, e.g. Sophie Aldred in Dragonfire: Part One)
 - Achilles (Cavan Kendall in The Myth Makers: Temple of Secrets)
 - Acolyte (10 episodes, e.g. Peter Baldock in The Face of Evil: Part Four)
 - Acomat (3 episodes, e.g. Philip Voss in Marco Polo: Five Hundred Eyes)
 - Ada (Rachael Stirling in The Crimson Horror)
 - Ada Lovelace (Sylvie Briggs in Spyfall: Part Two)
 - Adam (Edmond Moulton in The Almost People)
 - Adam (3 episodes, e.g. Brian Badcoe in Invasion of the Dinosaurs: Part Four)
 - Adam Colby (4 episodes, e.g. Edward Arthur in Image of the Fendahl: Part One)
 - Adam Davies Sheenan (Adam Davies in The Snowmen)
 - Adam Mitchell (2 episodes, e.g. Bruno Langley in Dalek)
 - Adam's Mum (Judy Holt in The Long Game)
 - Addams (2 episodes, e.g. Sinead Keenan in The End of Time: Part One)
 - Additional Dialogue (17 episodes, e.g. Paul Sparrowham in Rose)
 - Adebayo, Tunde (Jordan Adene in The Story & the Engine)
 - Adelaide (3 episodes, e.g. Annette Woollett in Horror of Fang Rock: Part Two)
 - Adelaide Brooke (3 episodes, e.g. Lindsay Duncan in The Waters of Mars)
 - Adelaide's Father (Charlie De'Ath in The Waters of Mars)
 - Adeola (Freema Agyeman in Army of Ghosts)
 - Adherent (Jamie Edgell in The End Of The World)
 - Adherent (5 episodes, e.g. Michael Humphries in The End Of The World)
 - Adipose Guard (Toby Sperring in Partners in Crime)
 - Adipose Security Guard (Alex Lucas in Partners in Crime)
 - Adipose Worker (31 episodes, e.g. Stephen Wright in Partners in Crime)
 - Adjani (Lonnee Archibong in Space Babies)
 - Adlon (2 episodes, e.g. Leslie Meadows in Delta and the Bannermen: Part One)
 - Administrator (Geoffrey Palmer in The Mutants: Episode One)
 - Admiral de Coligny (3 episodes, e.g. Leonard Sachs in The Massacre: The Sea Beggar)
 - ADR (328 episodes, e.g. Duncan Bett in The Unquiet Dead)
 - Adrasta (4 episodes, e.g. Myra Frances in The Creature from the Pit: Part One)
 - Adrian (Edward Harrison in The Caretaker)
 - Adric (44 episodes, e.g. Matthew Waterhouse in Full Circle: Part One)
 - Adult Choir Member (3 episodes, e.g. Dominic Neville in The End of Time: Part One)
 - Adult Civilian (26 episodes, e.g. Caroline Gill in The Day of The Doctor)
 - Adult Dummy (2 episodes, e.g. Rachel Chambers in Rose)
 - Advisor (9 episodes, e.g. Ken Nazarin in The Mutants: Episode Six)
 - Advisor Geoffrey Baxter (Ian Hilditch in The Christmas Invasion)
 - African King Customer (Charles Afele in Time Heist)
 - African King Wives Entourage (2 episodes, e.g. Cynthia Newman in Time Heist)
 - African Maid (2 episodes, e.g. Maxine Green in The Shakespeare Code)
 - African Man Customer (Maurice Spring in Time Heist)
 - Agamemnon (3 episodes, e.g. Francis de Wolff in The Myth Makers: Temple of Secrets)
 - Agatha Christie (2 episodes, e.g. Fenella Woolgar in The Unicorn and the Wasp)
 - Agella (4 episodes, e.g. Suzanne Danielle in Destiny of the Daleks: Episode One)
 - Aggedor (7 episodes, e.g. Nick Hobbs in The Monster of Peladon: Part Two)
 - Aggressive Miner (12 episodes, e.g. Ernie Goodyear in The Mark of the Rani: Part One)
 - Agorax (Dominic Burgess in Bad Wolf)
 - Ahmed (Vic Tablian in Pyramids of Mars: Part One)
 - Ahmed’s Senior Military (4 episodes, e.g. Patricia Dichler in Death in Heaven)
 - Aide (Glen Whitter in Day of the Daleks: Episode Four)
 - Ainu (4 episodes, e.g. Tim Munro in The Creature from the Pit: Part One)
 - Air Raid Warden (Colin Prockter in Victory of the Daleks)
 - Airport Passenger (Barry Noble in The Faceless Ones: Episode 2)
 - Airport Personnel (7 episodes, e.g. Anthony Lang in The Faceless Ones: Episode 1)
 - Airport Police Sergeant (Peter Roy in The Faceless Ones: Episode 1)
 - Airport Policeman guarding Meadows (Robin Dawson in The Faceless Ones: Episode 6)
 - Airport Policeman in Car Park (Roy Pearce in The Faceless Ones: Episode 6)
 - Airport Sergeant (Peter Roy in The Faceless Ones: Episode 5)
 - Airport Traveller (Spyfall) (Guillaume Rivaud in Spyfall: Part One)
 - Airport Worker (Tom Ashley in Spyfall: Part Two)
 - Al (Matt Bardock in Flatline)
 - Alan (Marvyn Williams in The Christmas Invasion)
 - Alan (Stewart Wright in The Lie Of The Land)
 - Alan-a-Dale (Ian Hallard in Robot Of Sherwood)
 - Alastair Fergus (David Simeon in The Dæmons: Episode One)
 - Alaya (2 episodes, e.g. Neve McIntosh in The Hungry Earth)
 - Albert C Richardson (Dennis Chinnery in The Chase: Flight Through Eternity)
 - Albert Dumfries (Nicholas Gecks in The Sound of Drums)
 - Albino Model Customer (Charlotte Williams in Time Heist)
 - Albino Servant (3 episodes, e.g. Amy Beth Hayes in The Stolen Earth)
 - Albino’s Assistant (Christina Qvam in Time Heist)
 - Aldo (4 episodes, e.g. Freddie Earlle in Warriors' Gate: Part One)
 - Alec Leeson (John Tordoff in Colony In Space: Episode Four)
 - Alec Palmer (Dougray Scott in Hide)
 - Alex (Daniel Mays in Night Terrors)
 - Alex Klein (Adam Garcia in The Christmas Invasion)
 - Alexander (William Dysart in The Highlanders: Episode 1)
 - Alexandra (Anna Andresen in The Power of the Doctor)
 - Alexei (2 episodes, e.g. Dan Li in The Bells of Saint John)
 - Alf (Tony Way in Deep Breath)
 - Alf (2 episodes, e.g. Brandon Miller in The Empty Child)
 - Alfie (George Caple in Survivors of the Flux: Flux: Chapter Five)
 - Alfie (7 episodes, e.g. Isabelle James in Closing Time)
 - Alfie (Paul Jerricho in Lucky Day)
 - Alfonso (Stavros Demetraki in The Witchfinders)
 - Algy (2 episodes, e.g. Robert Hands in The Empty Child)
 - Alice (Liz White in The Snowmen)
 - Alice Cassini (Bridget Turner in Gridlock)
 - Alice Coltrane (Natalie Walter in Turn Left)
 - Alien (Jimmy Vee in Aliens of London)
 - Alien Guard (24 episodes, e.g. John Atterbury in The War Games: Episode Four)
 - Alien Priest (2 episodes, e.g. Roy Heymann in Colony In Space: Episode Four)
 - Alien Space Captain (2 episodes, e.g. Peter Noel Cook in The Ambassadors of Death: Episode 6)
 - Alien Student (7 episodes, e.g. Phil Lundgren in The War Games: Episode Four)
 - Alien Technician (18 episodes, e.g. Charles Pemberton in The War Games: Episode Five)
 - Alien Voice (2 episodes, e.g. Peter Halliday in The Ambassadors of Death: Episode 6)
 - Alien Voice (2 episodes, e.g. Jonathan Hart in The Girl in the Fireplace)
 - Alien Voices (Silas Carson in The End Of The World)
 - Alien Woman (Angela Clerkin in Face The Raven)
 - Alison (India Ria Amarteifio in The Magician's Apprentice)
 - Alison Docherty (Ellie Haddington in Last of the Time Lords)
 - Alistair (Simon Dutton in The Time of Angels)
 - Alit (Briana Shann in The Doctor Falls)
 - All Ears Alan (Michael Beglay in Fugitive of the Judoon)
 - Allen (Stanley McGeagh in Colony In Space: Episode Three)
 - Allison (4 episodes, e.g. Karen Gledhill in Remembrance of the Daleks: Part One)
 - Almak (2 episodes, e.g. Barbara Fadden in Demons Of The Punjab)
 - Almondo, Joy (Nicola Coughlan in Joy to the World)
 - Alpha Centauri (21 episodes, e.g. Ysanne Churchman in The Monster of Peladon: Part One)
 - Alphan Servant (David Rogue in The Trial of a Time Lord (The Mysterious Planet): Part One)
 - Alphan Woman (36 episodes, e.g. Jackie Noble in The Trial of a Time Lord (Mindwarp): Part Eight)
 - Alphonse (Chris Lew Kum Hoi in The Husbands of River Song)
 - Altos (5 episodes, e.g. Robin Phillips in The Keys of Marinus: The Velvet Web)
 - Alvis (Anthony Gardner in The Macra Terror: Episode 1)
 - Alydon (Michael Ferguson in The Daleks: The Dead Planet)
 - Alydon (6 episodes, e.g. John Lee in The Daleks: The Ambush)
 - Amazonia (Wendy Danvers in The Curse of Peladon: Episode Four)
 - Ambassadors (12 episodes, e.g. Toby Hunt in The End Of The World)
 - Ambril (4 episodes, e.g. John Carson in Snakedance: Part One)
 - Ambril's Attendent (3 episodes, e.g. Chris Holmes in Snakedance: Part Two)
 - Ambrose (2 episodes, e.g. Nia Roberts in The Hungry Earth)
 - Ambulance (Susan Twist in Boom)
 - Ambulance Driver (2 episodes, e.g. B Cox in The Time Monster: Episode Three)
 - Ambulance Lady (Sylvia De La Mare in The Time Monster: Episode Three)
 - Ambulance Man (Donald Sinclair in The Faceless Ones: Episode 6)
 - Ambulance Man (2 episodes, e.g. Michael Wadsworth in The Hand Of Fear: Part One)
 - Ambulanceman (2 episodes, e.g. Derek Matt in Castrovalva: Part One)
 - Ambulanceman (Dave Carter in Doctor Who And The Silurians: Episode 6)
 - Amelia Ducat (3 episodes, e.g. Sylvia Coleridge in The Seeds of Doom: Part Three)
 - American Aide (Emmett Hennessy in Day of the Daleks: Episode Four)
 - American Diplomat (Charles Adey-Grey in Day of the Daleks: Episode Four)
 - American Passenger (2 episodes, e.g. Jack Horton in Time-Flight: Part One)
 - American Sergeant (John Brandon in The Tenth Planet: Episode 1)
 - American Soldier (3 episodes, e.g. Bruce Wells in The War Games: Episode Six)
 - American Student (4 episodes, e.g. Carl Tracey in Last of the Time Lords)
 - American Tourist (2 episodes, e.g. Dave Whitlam in The Bells of Saint John)
 - Amos (Graham Turner in The Crimson Horror)
 - Amy Doll (Ruth Webb in Night Terrors)
 - Amyand (4 episodes, e.g. James Bate in Planet of Fire: Part One)
 - Anahson (Letitia Wright in Face The Raven)
 - Anat (4 episodes, e.g. Anna Barry in Day of the Daleks: Episode One)
 - Anatta (Anna Wing in Kinda: Part One)
 - Ancelyn (4 episodes, e.g. Marcus Gilbert in Battlefield: Part One)
 - Ancient Haemovore (Raymond Trickett in The Curse of Fenric: Part Four)
 - Anderson (3 episodes, e.g. Ian Mackenzie in Dragonfire: Part One)
 - Andinio (Phyllis Logan in The Battle of Ranskoor Av Kolos)
 - Andor (2 episodes, e.g. Victor Lucas in The Face of Evil: Part One)
 - Andred (6 episodes, e.g. Christopher Tranchell in The Invasion of Time: Part One)
 - Andrew (Anthony Taylor in Can You Hear Me?)
 - Andrew Verney (Frederick Hall in The Awakening: Part Two)
 - Andrews (Peter Cellier in Time-Flight: Part One)
 - Andro (Nasi Voutsas in The Name of the Doctor)
 - Androgar (Peter De Jersey in The Day of The Doctor)
 - Android (3 episodes, e.g. Dean Hollingsworth in Timelash: Part One)
 - Android (6 episodes, e.g. Peter van Dissell in The Visitation: Part One)
 - Android Mechanic (9 episodes, e.g. Derek Hunt in The Android Invasion: Part One)
 - Andy (James Thackeray in The Woman Who Fell to Earth)
 - Andy Stone (Alan Ruscoe in The Waters of Mars)
 - Anethan Corpse (3 episodes, e.g. Debbi Thomson in The Horns of Nimon: Part Four)
 - Anethan sacrifices (20 episodes, e.g. Daniel Tabori in The Horns of Nimon: Part One)
 - Ange (Kate Eaton in Survival: Part One)
 - Angel (3 episodes, e.g. Aga Blonska in Blink)
 - Angela (Victoria Alcock in Planet of the Dead)
 - Angela Clifford (3 episodes, e.g. Judith Byfield in Time-Flight: Part One)
 - Angelina (2 episodes, e.g. Molly Griffiths in The Caretaker)
 - Angelo (Troy Glasgow in The Time of Angels)
 - Angelo, Cardinal (Corrado Invernizzi in Extremis)
 - Angie (6 episodes, e.g. Eve De Leon Allen in Nightmare in Silver)
 - Angstrom (Susan Lynch in The Ghost Monument)
 - Angus (2 episodes, e.g. Angus Lennie in Terror of the Zygons: Part One)
 - Anicca (Roger Milner in Kinda: Part One)
 - Animus Voice (4 episodes, e.g. Catherine Fleming in The Web Planet: The Zarbi)
 - Anita (Amy Cudden in Let's Kill Hitler)
 - Anita (3 episodes, e.g. Carmen Gomez in The Two Doctors: Part One)
 - Anita (2 episodes, e.g. Jessika Williams in Silence in the Library)
 - Anita Shadow (Louise Harrison in Forest of the Dead)
 - Anita Suit Creature (Ellen Thomas in Forest of the Dead)
 - Anithon (Hugh Hayes in Time-Flight: Part Three)
 - Ankh (2 episodes, e.g. Frank Jarvis in Underworld: Part Three)
 - Ann (2 episodes, e.g. Sarah Sutton in Black Orchid: Part One)
 - Ann Davidson (6 episodes, e.g. Gilly Fraser in The Faceless Ones: Episode 2)
 - Anna Zhou (Elizabeth Tan in Journey's End)
 - Annabel (Eloise Barnes in In The Forest Of The Night)
 - Annalise (2 episodes, e.g. Kimmi Richards in Smith and Jones)
 - Anne (4 episodes, e.g. Annette Robertson in The Massacre: War of God)
 - Anne Droid (4 episodes, e.g. Anne Robinson in Bad Wolf)
 - Anne Travers (6 episodes, e.g. Tina Packer in The Web of Fear: Episode 1)
 - Announcer (3 episodes, e.g. Lynn Gardner in Dragonfire: Part One)
 - Announcer (Brigit Paul in The Faceless Ones: Episode 2)
 - Antarctica Marine (2 episodes, e.g. Patrick Milber in The Seeds of Doom: Part Three)
 - Anti-matter monster (6 episodes, e.g. Mike Lee Lane in Planet of Evil: Part One)
 - Antodus (4 episodes, e.g. Marcus Hammond in The Daleks: The Ambush)
 - Anton (Henry Stamper in The Enemy of the World: Episode 1)
 - Ap Gwilliam, Roger (2 episodes, e.g. Aneurin Barnard in 73 Yards)
 - Ara (4 episodes, e.g. Catherine Howe in The Underwater Menace: Episode 1)
 - Arab King (Mohammed Yassen in Time Heist)
 - Arab King Entourage (Mohamed Soliman in Time Heist)
 - Arab Sheikh (David James in The Daleks' Master Plan: The Feast of Steven)
 - Arak (2 episodes, e.g. Stephen Yardley in Vengeance on Varos: Part One)
 - Arak (4 episodes, e.g. Gareth Hunt in Planet of the Spiders: Part Three)
 - Aram (Christine Kavanagh in Timelash: Part One)
 - Aramu (Thapelo Maropefela in Praxeus)
 - Arana, Doña (Aimée Delamain in The Two Doctors: Part One)
 - Arbinger, Harriet (2 episodes, e.g. Genesis Lynea in The Legend of Ruby Sunday)
 - Arbinger, Henry (Kit Rakusen in The Devil's Chord)
 - Arbitan (George Coulouris in The Keys of Marinus: The Sea of Death)
 - Arbitan's Double (John Beorbohn in The Keys of Marinus: The Sea of Death)
 - Archer (4 episodes, e.g. Richard Allen in Robot Of Sherwood)
 - Archie (2 episodes, e.g. Rab Affleck in The Name of the Doctor)
 - Archimandrite (3 episodes, e.g. Cyril Shaps in The Androids of Tara: Part Two)
 - Architect (Trevor Shewring in The Invasion: Episode Six)
 - Archivist (Daphne Oxenford in Dragonfire: Part Two)
 - Arcturus (3 episodes, e.g. Murphy Grumbar in The Curse of Peladon: Episode One)
 - Arden (3 episodes, e.g. George Waring in The Ice Warriors: One)
 - Areta (2 episodes, e.g. Geraldine Alexander in Vengeance on Varos: Part One)
 - Argolin (26 episodes, e.g. Maurice Connor in The Leisure Hive: Part One)
 - Aridian (Brian Proudfoot in The Chase: The Death of Time)
 - Aris (4 episodes, e.g. Adrian Mills in Kinda: Part One)
 - Arlo, Kira (Claudia Jessie in Kerblam!)
 - Arm Under Bed (Amy Stuckey in Listen)
 - Armand Vallance (5 episodes, e.g. Derrick Gilbert in The Wheel In Space: Episode 2)
 - Armed Police (12 episodes, e.g. Bryan Williams in The Sound of Drums)
 - Armed Police Driver (John Shepherd in Planet of the Dead)
 - Armed Policeman (David Constant in 73 Yards)
 - Armen (Nathan Armarkwei-Laryea in Revolution of the Daleks)
 - Armhost, Deputy Marshal (Joe Sims in The Power of the Doctor)
 - Armourer (Derek Chafer in The Masque of Mandragora: Part Four)
 - Army Captain (Julia Busby in The Christmas Invasion)
 - Army Soldier (6 episodes, e.g. Leslie Bates in Invasion of the Dinosaurs: Part Five)
 - Arnheim (Chris MacDonnell in Dragonfire: Part Two)
 - Arnold Keeler (4 episodes, e.g. Mark Jones in The Seeds of Doom: Part One)
 - Arrex (2 episodes, e.g. Richard Mitchley in Delta and the Bannermen: Part Two)
 - Art Gallery Visitor (2 episodes, e.g. Eleanor Bron in City of Death: Part Four)
 - Arthur (Morgan Deare in Rosa)
 - Arthur (Henry Wood in A Good Man Goes to War)
 - Arthur Lloyd (2 episodes, e.g. Damian Samuels in The Empty Child)
 - Arthur Terrall (3 episodes, e.g. Gary Watson in The Evil of the Daleks: Episode 3)
 - Artie (5 episodes, e.g. Kassius Carey Johnson in The Bells of Saint John)
 - Artist in cafe (James Charlton in City of Death: Part One)
 - Arturo Villar (3 episodes, e.g. Michael Napier-Brown in The War Games: Episode Eight)
 - Arwell, Cyril (2 episodes, e.g. Maurice Cole in The Doctor, The Widow and the Wardrobe)
 - Arwell, Lily (Holly Earl in The Doctor, The Widow and the Wardrobe)
 - Arwell, Madge (2 episodes, e.g. Claire Skinner in The Doctor, The Widow and the Wardrobe)
 - Arwell, Reg (Alexander Armstrong in The Doctor, The Widow and the Wardrobe)
 - Ascaris (2 episodes, e.g. Barry Jackson in The Romans: The Slave Traders)
 - Ashad (4 episodes, e.g. Patrick O'Kane in The Haunting Of Villa Diodati)
 - Ashe (6 episodes, e.g. John Ringham in Colony In Space: Episode One)
 - Ashildr (5 episodes, e.g. Maisie Williams in The Girl Who Died)
 - Ashley Carter (Natalie Gumede in Last Christmas)
 - Ashton (Patrick O'Connell in The Dalek Invasion of Earth: The End of Tomorrow)
 - Assassin (Tom Sye in The Massacre: Priest of Death)
 - Assistant Director (Conrad Monk in The Daleks' Master Plan: The Feast of Steven)
 - Association Man (10 episodes, e.g. Len Bond in Remembrance of the Daleks: Part One)
 - Astos (Brett Goldstein in The Tsuranga Conundrum)
 - Astrid (6 episodes, e.g. Mary Peach in The Enemy of the World: Episode 1)
 - Astrid Peth (2 episodes, e.g. Kylie Minogue in Voyage of the Damned)
 - Astronaut (10 episodes, e.g. Steve Peters in The Ambassadors of Death: Episode 3)
 - ATC Technician (5 episodes, e.g. Roy Curtis in The Faceless Ones: Episode 2)
 - Atkins (Tom Keller in The Day of The Doctor)
 - Atlantean Child (2 episodes, e.g. Gary O'Brien in The Underwater Menace: Episode 4)
 - Atlantean Child Priest (4 episodes, e.g. Anthony Kemp in The Underwater Menace: Episode 3)
 - Atlantean Guard (13 episodes, e.g. Michael Earl in The Underwater Menace: Episode 3)
 - Atlantean Priest (19 episodes, e.g. Reg Cranfield in The Underwater Menace: Episode 1)
 - Atlantean Refugee (7 episodes, e.g. Marguerite Young in The Underwater Menace: Episode 3)
 - ATMOS Voice (Elizabeth Rider in The Sontaran Stratagem)
 - ATO Technician (9 episodes, e.g. Roy Curtis in The Faceless Ones: Episode 4)
 - Atraxi Voice (David de Keyser in The Eleventh Hour)
 - Attendant (Edmund Bailey in Spearhead From Space: Episode 4)
 - Attendant (7 episodes, e.g. Tom Lawrence in Revelation of the Daleks: Part One)
 - Attendant at 2nd Way Inn (O Ikeda in Marco Polo: Mighty Kublai Khan)
 - Attendant at Wang Lo's Inn (3 episodes, e.g. Suk Hee S'Hng in Marco Polo: The Roof of the World)
 - Attendant to the Empress (2 episodes, e.g. Doreen Tang in Marco Polo: Assassin at Peking)
 - Attendent (6 episodes, e.g. Anthony Wellington in Vengeance on Varos: Part One)
 - Attendent on Ping-Cho (4 episodes, e.g. Zohra Sehgal in Marco Polo: Rider From Shang-Tu)
 - Atza (4 episodes, e.g. Sam Howard in The Trial of a Time Lord (Terror of the Vervoids): Part Nine)
 - Audience (97 episodes, e.g. Colin Calton in The Shakespeare Code)
 - Audience (11 episodes, e.g. Tina Stratford in The Sound of Drums)
 - Audience (29 episodes, e.g. Nick Madge in Evolution of the Daleks)
 - Audrey (Tina Gray in Lucky Day)
 - Augustus Pond (Halcro Johnston in The Big Bang)
 - Aukon (4 episodes, e.g. Emrys James in State of Decay: Part One)
 - Aunt (June Easther in Remembrance of the Daleks: Part Four)
 - Aunt Betty (Jean Challis in The Idiot's Lantern)
 - Aunt Sharon (Susan Vidler in The Big Bang)
 - Aunt Vanessa (2 episodes, e.g. Dolore Whiteman in Logopolis: Part One)
 - Auntie (Elizabeth Berrington in The Doctor's Wife)
 - Aunty (2 episodes, e.g. Susanna John in Human Nature)
 - Aura-Kin, Wynn (Iona Anderson in The Interstellar Song Contest)
 - Autloc (4 episodes, e.g. Keith Pyott in The Aztecs: The Temple of Evil)
 - Auton (30 episodes, e.g. Alan Ruscoe in Rose)
 - Auton Leader (2 episodes, e.g. Pat Gorman in Terror of the Autons: Episode Four)
 - Auton Policeman (2 episodes, e.g. Terry Walsh in Terror of the Autons: Episode Three)
 - Auton Voice (2 episodes, e.g. Haydn Jones in Terror of the Autons: Episode Four)
 - Avery, Henry (2 episodes, e.g. Hugh Bonneville in The Curse of the Black Spot)
 - Avery, Toby (2 episodes, e.g. Oscar Lloyd in The Curse of the Black Spot)
 - Avolaski (Jeremia K Fredrick in The Doctor's Daughter)
 - Avon (2 episodes, e.g. Robert Sidaway in The Savages: Episode 1)
 - Awsok (Barbara Flynn in Once, Upon Time: Flux: Chapter Three)
 - Axon (3 episodes, e.g. Geoff Brighty in The Claws of Axos: Episode Three)
 - Axon Boy (John Hicks in The Claws of Axos: Episode One)
 - Axon Girl (Debbie Lee London in The Claws of Axos: Episode One)
 - Axon Glob (13 episodes, e.g. Clinton Morris in The Claws of Axos: Episode One)
 - Axon Man (10 episodes, e.g. Bernard Holley in The Claws of Axos: Episode One)
 - Axon Monster (Clinton Morris in The Claws of Axos: Episode Three)
 - Axon Woman (3 episodes, e.g. Patricia Gordino in The Claws of Axos: Episode One)
 - Axus (3 episodes, e.g. Richard Ireson in The Krotons: Episode One)
 - Aydan (Martin Cort in The Keys of Marinus: Sentence of Death)
 - Azal (2 episodes, e.g. Stephen Thorne in The Dæmons: Episode Five)
 - Azaxyr (3 episodes, e.g. Alan Bennion in The Monster of Peladon: Part Four)
 - Aztec (9 episodes, e.g. Alice Greenwood in The Aztecs: The Temple of Evil)
 - Aztec Captain (4 episodes, e.g. David Anderson in The Aztecs: The Temple of Evil)
 - Aztec Warrior (25 episodes, e.g. Paul Duval in The Aztecs: The Temple of Evil)
 - Azure (5 episodes, e.g. Rochenda Sandall in War of The Sontarans: Flux: Chapter Two)
 - Azure / Anna (Rochenda Sandall in The Halloween Apocalypse: Flux: Chapter One)
 - £10 Lady (Lorraine Joseph in The Runaway Bride)