Tardis:Sandbox

Señor 105

Agent 99 (Agents Observation Test)

Defence Advocate 997

Aall

William Abberton

The Abbess (Eye of the Gorgon)

Abbot of Mai' Sung

Abbot (Exclave)

Abbot (Unbound Universe)

Andrew Abbott

Tom Abbott

Abeland

Abernathy (Certificate of Destruction)

Ablemarch

Abraham (A Thousand Tiny Wings)

Valentin Abramov

Abrams

Abraxas

Abschrift

Ace

Ace's nan (Chemistry)

Ace/Other realities

Ackland

Ackroyd (Unnatural Selection)

Ackroyd (The Fifth Citadel)

Second acolyte

Acolyte (Suburban Hell)

Acquisitor Prime

Colin Acres Junior

Adam (The Helliax Rift)

Adam (Invasion of the Dinosaurs)

Adam (Unbound Universe)

Adams (The Android Invasion)

Barney Adams

Douglas Adams (in-universe)

Julia Adams

Bart Addison

Konrad Adenauer

Jasper Adeola

Vivian Adeola

Joe Adler

Adlon

Afrid

Agar

Robert Agar

Agatha (The Canvey Angels)

Aggedor (Glorious Goodwood)

Aggie (The Sow in Rut)

Christina Aguilera

Ahmed (Pyramids of Mars)

Aide (The Seeds of Doom)

Alice Aiken

Ailla (Inferno Earth)

Laura Ainsell

Air raid warden (Victory of the Daleks)

Adi Akhtar

Akram

Elena Hilda Al-Qatari

Alam

Alan (The Christmas Invasion)

Alan (The Dying Days)

Albert (The Edge)

Albert (Walls of Confinement)

Eleonora Albertova

Albertine

Albertson (Murder at the Abbey)

Carla Alcazar

Alcott

Aldridge

Buzz Aldrin

Alec (Human Nature)

Alejandro (Goodbye Piccadilly)

Alex (Do You Smell Carrots?)

Alex (Father Time)

Alex (Troubled Waters)

Alex (Whatever Happened to Iris Wildthyme?)

Hugh Alexander

Natasha Alexander

Alexander (Relative Dementias)

Alexandra Fydorovna

Alf (The Empty Child)

Alfie (Fanboys)

Alfred (Invasion of the Cat-People)

A. S. Alfredson

Algy

Abigail Ali

Alice (Echoes)

Alice (Swan Song)

Alice (The Hunting Season)

Alison (Office Politics)

Howard Allan

Rachel Allan's mother

Dieter Allegro

Chrissie Allen

Salvador Allende

Jed Allum

Almak

Alois (Scorched Earth)

Alomar (Dominion)

Clive Alton

Harold Alton

Kristoff Alucard

Cristián Alvarez

Amanda (The Winning Side)

Amanda (The Dimension Riders)

Amanda (Whatever Happened to Iris Wildthyme?)

Ambrose (*Sub Zero)

Ambrose (Falling from Xi'an)

American sergeant (The Tenth Planet)

Amies

The Amphibians

The Amphibians member (Father's Day)

Amphitrite

Amyand

Anand

Anastasia (Millennial Rites)

Ancelyn

The Ancient One (The Curse of Fenric)

Anna Anderson

Archie Anderson

Ben Anderson

Edward Anderson

Gillian Anderson

Polly Anderson

Anderson (Hexagora)

Paul Anderton

Andre (Suitors, Inc.)

Andrew (Dog Days of Summer)

Barnaby Andrews

Clifford Andrews

Eamonn Andrews

Ken Andrews

Prince Andrew

Stephanie Andrews

Andrews (1963: The Space Race)

Andrews (The Forsaken)

Andrews (The Time Travellers)

Andrews (Time-Flight)

John Andrews (Carnival of Monsters)

John Andrews (The Incherton Incident)

Peter Andrews (Island of Death)

Peter Andrews (The Hidden Realm)

Android (A Life in the Day)

Yuri Andropov

Matteusz Andrzejewski

Matteusz Andrzejewski's father

Matteusz Andrzejewski's mother

Andy (Relative Dementias)

Ange

Angel (Earth-92131)

Angela (Unnatural Selection)

Archibald Angelchrist

Anita's mother

Anita (The Two Doctors)

Anna (The Clockwise Man)

Anna (The Left-Handed Hummingbird)

Princess Anne

Announcer (The Emerald Tiger)

Anthony (Downtime)

Antoine (White Darkness)

Antonio (Revolution Man)

Antonio (Treasure Trail)

Aphasia

Abner Apple

Mister Apprehension

Ara

Arab sheik

Arana (The Two Doctors)

Vincente Arana

Louis Arbourne

Fatty Arbuckle

Archaeologist (Prisoners of the Lake)

Archaeologist (The Gods Walk Among Us)

Archer (Dalek duplicate)

Archer (Resurrection of the Daleks)

Isobel Archer

Kevin Archer

Archie (Front Line)

Constance Arden

Thomas Arden

Ariana (The Torchwood Archive)

Lysandra Aristedes

Arlo

Armitage (The Unbegotten)

Armitage (The Family of Blood)

Louis Armstrong

Neil Armstrong

Sally Armstrong

Army photographer (Invasion of the Dinosaurs)

Desi Arnaz

Albert Arnold

Arnold (Fugitive of the Daleks)

Arnold (Timewyrm: Exodus)

Gareth Arnold

Sally Arnold

Arrex

Will Arrowsmith

Antonin Artaud

Arthur (Rosa)

Arthur (The Totally Stonking, Surprisingly Educational And Utterly Mindboggling Comic Relief Comic)