Doctor Who Season Regulars

Season 1

1st Doctor = 42 episodes
Ian Chesterton  = 42 episodes
Barbara Wright = 42 episodes
Susan Foreman = 42 episodes

Season 2 

1st Doctor = 39 episodes
Ian Chesterton = 39 episodes
Barbara Wright = 39 episodes
Vicki = 30 episodes
Susan Foreman = 9 episodes
Steven Taylor = 5 episodes
The Meddling Monk = 4 episodes
Queen Elizabeth I = 1 episode
William Shakespeare = 1 episode

Season 3

1st Doctor = 44 episodes
Steven Taylor = 40 episodes
Dodo Chaplet = 18 episodes
Vicki = 8 episodes
Katarina = 5 episodes
Ben Jackson = 4 episodes
Polly = 4 episodes
Malpha = 4 episodes
The Meddling Monk = 3 episodes

Season 4 

2nd Doctor = 37 episodes
Ben Jackson = 34 episodes
Polly = 34 episodes
Jamie McCrimmon = 30 episodes
1st Doctor = 8 episodes
Victoria Waterfield = 6 episodes

Season 5 

2nd Doctor = 40 episodes
Jamie McCrimmon = 40 episodes
Victoria Waterfield = 34 episodes
Proffesor Edward Travers = 12 episodes
Tanya = 6 episodes
Zoe Heriot = 5 episodes
Brigadier Lethbridge Stewart = 5 episodes
The Great Intelligence = 2 episodes

Season 6

2nd Doctor = 44 episodes
Jamie McCrimmon = 44 episodes
Zoe Heriot = 44 episodes
Brigadier Lethbridge Stewart = 7 episodes
Chancellor Goth = 5 episodes
Sergeant Benton = 5 episodes
Time Lord Chancellor = 1 episode
Tanya = 1 episode

Season 7

3rd Doctor = 25 episodes
Liz Shaw = 25 episodes
Brigadier Lethbridge Stewart = 25 episodes
Sergeant Benton = 9 episodes

Season 8

3rd Doctor = 25 episodes
Jo Grant = 25 episodes
The Master = 22 episodes
Brigadier Lethbridge Stewart = 21 episodes
Captain Mike Yates = 19 episodes
Sergeant Benton = 17 episodes
Corporal Bell = 5 episodes
Time Lord Technician = 2 episodes

Season 9

3rd Doctor = 26 episodes
Jo Grant = 26 episodes
The Master = 12 episodes
Brigadier Lethbridge Stewart = 9 episodes
Sergeant Benton = 8 episodes
Captain Mike Yates = 6 episodes
Alpha Centuri = 4 episodes

Season 10

3rd Doctor = 26 episodes
Jo Grant = 26 episodes
Brigadier Lethbridge Stewart = 10 episodes
Sergeant Benton = 7 episodes
1st Doctor = 4 episodes
2nd Doctor = 4 episodes
Omega = 4 episodes
The Master = 4 episodes
Time Lord Chancellor = 4 episodes
Time Lord Technician = 4 episodes
Captain Mike Yates = 3 episodes

Season 11

3rd Doctor = 26 episodes
Sarah Jane Smith = 26 episodes
Captain Mike Yates = 12 episodes
Brigadier Lethbridge Stewart = 10 episodes
Sergeant Benton = 8 episodes
Alpha Centuri = 6 episodes
4th Doctor = 1 episode

Season 12

4th Doctor = 20 episodes
Sarah Jane Smith = 20 episodes
Harry Sullivan = 20 episodes
Davros = 6 episodes
Brigadier Lethbridge Stewart = 4 episodes
Sergeant Benton = 4 episodes

Season 13

4th Doctor = 26 episodes
Sarah Jane Smith = 26 episodes
Harry Sullivan = 7 episodes
Sergeant Benton = 7 episodes
Brigadier Lethbridge Stewart = 4 episodes

Season 14

4th Doctor = 26 episodes
Leela = 14 episodes
Sarah Jane Smith = 8 episodes
The Master = 4 episodes
Chancellor Goth = 4 episodes
Boruca  = 4 episodes

Season 15

4th Doctor = 26 episodes
Leela = 26 episodes
K9 = 18 episodes
Boruca = 6 episodes

Season 16

4th Doctor = 26 episodes
Rommana I = 26 episodes
K9 = 21 episodes
The White Guardian = 3 episodes
The Black Guardian = 1 episode

Season 17

4th Doctor = 20 episodes
Rommana II = 20 episodes
K9 = 13 episodes
Davros = 4 episodes

Season 18

4th Doctor = 28 episodes
Rommana II = 20 episodes
Adric = 20 episodes
K9 = 15 episodes
The Master = 6 episodes
Nyssa = 6 episodes
Tegan Jovenka = 4 episodes
5th Doctor = 1 episode

Season 19

5th Doctor = 26 episodes
Nyssa = 26 episodes
Tegan Jovenka = 26 episodes
Adric = 22 episodes
The Master = 8 episodes

Season 20

5th Doctor = 23 episodes
Tegan Jovenka = 22 episodes
Nyssa = 16 episodes
Turlough = 15 episodes
The Black Guardian = 12 episodes
Boruca = 5 episodes
The Castellan = 5 episodes
Brigadier Lethbridge Stewart = 4 episodes
The Master = 3 episodes
Kamelion = 2 episodes
The White Guardian = 2 episodes
1st Doctor = 1 episode
2nd Doctor = 1 episode
3rd Doctor = 1 episode
4th Doctor = 1 episode
Susan Foreman = 1 episode
Sarah Jane Smith = 1 episode
K9 = 1 episode
Rommana II = 1 episode
Rassalon = 1 episode

Season 21

5th Doctor = 24 episodes
Turlough = 18 episodes
Tegan Jovenka = 14 episodes
Peri Brown = 12 episodes
6th Doctor = 5 episodes
The Master = 4 episodes
Kamelion = 3 episodes
Davros = 2 episodes
Lytton = 2 episodes

Season 22

6th Doctor = 13 episodes
Peri Brown = 13 episodes
2nd Doctor = 3 episodes
Jamie McCrimmon = 3 episodes
Lytton = 2 episodes
Sil = 2 episodes
The Master = 2 episodes
The Rani = 2 episodes

Season 23

6th Doctor = 14 episodes
Inquisitor Darkel = 14 episodes
The Valeyard = 14 episodes
Peri Brown = 8 episodes
Sabalom Glitz = 6 episodes
Mel Bush = 6 episodes
Sil = 4 episodes
The Master = 2 episodes

Season 24

7th Doctor = 14 episodes
Mel Bush = 14 episodes
The Rani = 4 episodes
Ace = 4 episodes
Sabalom Glitz = 4 episodes
6th Doctor = 1 episode

Season 25

7th Doctor = 14 episodes
Ace = 14 episodes
Davros = 1 episode

Season 26

7th Doctor = 15 episodes
Ace = 14 episodes
The Master = 4 episodes
8th Doctor = 1 episode

Series 1

9th Doctor = 13 episodes
Rose Tyler = 13 episodes
Jackie Tyler = 6 episodes
Micky Smith = 6 episodes
Jack Harkness = 5 episodes
Blon Fel Forch Pasameer Day Slitheen = 3 episodes
Adam Mitchell = 3 episodes
The Face of Boe = 2 episodes
Harriet Jones = 2 episodes
Trinity Wells = 2 episodes
Lady Cassandra = 1 episode
Charles Dickins = 1 episode
Pete Tyler = 1 episode
10th Doctor = 1 episode

Series 2

10th Doctor = 14 episodes
Rose Tyler = 14 episodes
Micky Smith = 8 episodes
Jackie Tyler = 7 episodes
Pete Tyler = 3 episodes
Jake Simmonds = 3 episodes
Dalek Sec = 2 episodes
Dalek Thay = 2 episodes
Dalek Caan = 2 episodes
Dalek Jast = 2 episodes
Harriet Jones = 1 episode
Trinity Wells = 1 episode
Lady Cassandra = 1 episode
The Face of Boe = 1 episode
Novice Hame = 1 episode
Sarah Jane Smith = 1 episode
K9 = 1 episode
Donna Noble = 1 episode

Series 3 

10th Doctor = 14 episodes
Martha Jones = 13 episodes
Francine Jones = 5 episodes
Tish Jones = 4 episodes
Leo Jones = 3 episodes
Clive Jones = 3 episodes
Jack Harkness = 3 episodes
The Master = 3 episodes
Dalek Sec = 2 episodes
Dalek Thay = 2 episodes
Dalek Caan = 2 episodes
Dalek Jast = 2 episodes
Miss Dexter = 2 episodes
Lucy Saxon = 2 episodes
Queen Elizabeth I = 1 episode
William Shakespeare = 1 episode
The Face of Boe = 1 episode
Novice Hame = 1 episode
Trinity Wells = 1 episode
Donna Noble = 1 episode
Sylvia Noble = 1 episode
Nerys = 1 episodes
Oliver Morgentstan = 1 episode

Series 4 

10th Doctor = 19 episodes
Donna Noble = 15 episodes
Wilfred Mott = 9 episodes
Sylvia Noble = 8 episodes
Rose Tyler = 7 episodes
Martha Jones = 6 episodes
Ood Sigma = 4 episodes
Trinity Wells = 4 episodes
Captain Harris = 3 episodes
Sarah Jane Smith = 3 episodes
Luke Smith = 3 episodes
Jack Harkness = 3 episodes
Alonzo Frame = 2 episodes
River Song = 2 episodes
Captain Magombo = 2 episodes
Davros = 2 episodes
Dalek Caan = 2 episodes
Mr Smith = 2 episodes
Lanto Jones = 2 episodes
Gwen Cooper = 2 episodes
Francine Jones = 2 episodes
Jackie Tyler = 2 episodes
Micky Smith = 2 episodes
The Master = 2 episodes
Rassalon = 2 episodes
The Doctor's Mother = 2 episodes
Harriet Jones = 1 episode
K9 = 1 episode
Oliver Morgenstan = 1 episode
Lucy Saxon = 1 episode
Nerys = 1 episode
11th Doctor = 1 episode

Series 5

11th Doctor = 13 episodes
Amy Pond = 13 episodes
Rory Williams = 9 episodes
River Song = 4 episodes
Winston Churchill = 3 episodes
Liz 10 = 2 episodes
Edward Bracewell = 2 episodes
Malokeh = 2 episodes
Vincent Van Gogh = 2 episodes
Dannyboy = 1 episode
Craig Owens = 1 episode
Sophie Owens = 1 episode
Dorium Maldalover = 1 episode
Brian Williams = 1 episode

Series 6

11th Doctor = 14 episodes
Amy Pond = 14 episodes
Rory Williams = 14 episodes
Madam Kovarian = 7 episodes
River Song = 6 episodes
Canton Eleware III = 3 episodes
Captain Avery = 2 episodes
Toby Avery = 2 episodes
Dorium Maldalover = 2 episodes
Tescelta Captain = 2 episodes
Charles Dickens = 1 episode
Winston Churchill = 1 epiosde
Dannyboy = 1 episode
Madam Vastra = 1 episode
Strax = 1 episode
Jenny Flint = 1 episode
Craig Owens = 1 episode
Sophie Owens = 1 episode
Malokeh = 1 episode

Series 7

11th Doctor = 17 episodes
Clara Osworld = 12 episodes
Amy Pond = 6 episodes
Rory Williams = 6 episodes
Artie Mainland = 4 episodes
Angie Mainland = 4 episodes
The Great Intelligence = 3 episodes
Strax = 3 episodes
Madam Vastra = 3 episodes
Jenny Flint = 3 episodes
Brian Williams = 2 episodes
Kate Lethbridge Stewart = 2 episodes
River Song = 2 episodes
War Doctor = 2 episodes
1st Doctor = 2 episodes
2nd Doctor = 2 episodes
3rd Doctor = 2 episodes
4th Doctor = 2 episodes
5th Doctor = 2 episodes
6th Doctor = 2 episodes
7th Doctor = 2 episodes
8th Doctor = 2 episodes
9th Doctor = 2 episodes
10th Doctor = 2 episodes
12th Doctor = 2 episodes
The General = 2 episodes
Time Lord Soldier = 1 episode
Susan Foreman = 1 episode
Rose Tyler = 1 episode
Queen Eilzabeth I = 1 episode
Osgood = 1 episode
Grannie Osworld = 1 episode

Series 8 

12th Doctor = 12 episodes
Clara Osworld = 12 episodes
Danny Pink = 10 episodes
Missy = 7 episodes
Courtney Woods = 3 episodes
Mr Armitage = 3 episodes
Seb = 3 episodes
Madam Vasta = 1 episode
Strax = 1 episode
Jenny Flint = 1 episode
Inspector Gregson = 1 episode
11th Doctor = 1 episode
1st Doctor = 1 episode
The Doctor's Mother = 1 episode
Rigsy = 1 episode
Grannie Osworld = 1 episode
Kate Lethbridge Stewart = 1 episode
Osgood = 1 episode
Brigadier Lethbridge Stewart = 1 episode
Santa Claus = 1 episode