| Actor | Role | First | Last | No of episodes | Duration |
|---|
| Tom Baker | Doctor Who - Meglos - Xoanon - The Curator | 8 Jun 1974 | 28 Feb 2021 | 186 | 87h :11m |
| William Hartnell | Dr. Who - Abbot of Amboise | 23 Nov 1963 | 20 Jan 1973 | 138 | 57h :16m |
| Jon Pertwee | Doctor Who | 3 Jan 1970 | 25 Nov 1983 | 129 | 53h :26m |
| Patrick Troughton | Dr. Who - Salamander | 29 Oct 1966 | 2 Mar 1985 | 128 | 55h :47m |
| Frazer Hines | Jamie | 17 Dec 1966 | 2 Mar 1985 | 116 | 48h :35m |
| Pat Gorman | Silurian Scientist - Planetarian - Soldier - Primord - Auton Leader - Primitive - Long - Colonist - Sea Devil - Stunt Man - Cyberman - Technician - Military Policeman - Thal Soldier - Chase's Guard - Soldier (San Martino) - Brethren - Medic - Pilot - Worker - Presidential Guard - Peladon Guard - Metabelis 3 Inhabitant - Coven - Warrior Monk - Security Guard - Soldier (UNIT) - Wholewealer - Krole - Thug - Freedom Fighter - Greek Soldier - Trojan Soldier - Seaman - Slave Worker - Film Camerman - UNIT Soldier - Gundan - Chancellery Guard - UNIT Corporal - (extra) - Dead Crewman - Foster - Grogan - Work Party - Telos | 28 Nov 1964 | 12 Jan 1985 | 111 | 45h :40m |
| Nicholas Courtney | Brigadier Lethbridge-Stewart - Bret Vyon - The Brigade Leader - Tourist at Windsor | 13 Nov 1965 | 28 Nov 2021 | 109 | 47h :02m |
| Peter Davison | The Doctor - Omega - Kamelion | 21 Mar 1981 | 15 Sep 2023 | 98 | 66h :42m |
| Terry Walsh | Stand In - Doctor Who - Man with boat - Guard Captain - Stunt Man - Spaceman - Warehouse Looter - Stunt UNIT Soldier - Soldier (UNIT) - Auton Policeman - Stunts - Castle Guard Barclay - Window Cleaner - Bouncer - Mensch - Doran - Fight Arranger - Executioner - Overlord Guard - Solos Guard - Stunt Pirate - Sevateem - Zake - Harry Sullivan - Muto - Guard (Thal) - Scientist (Kalid) | 1 Oct 1966 | 27 Oct 1979 | 86 | 39h :26m |
| Elisabeth Sladen | Sarah Jane Smith | 15 Dec 1973 | 1 Jan 2010 | 85 | 37h :44m |
| Jacqueline Hill | Barbara Wright - Lexa | 23 Nov 1963 | 18 Oct 1980 | 81 | 32h :48m |
| John Scott Martin | Zarbi Operator - Dalek Operator - Fungoid - Mechonoid - Robot - Mutt - Gell Guard - Hughes - (extra) - Kriz - Nucleus - Mutant - Charlie - Coven | 20 Feb 1965 | 26 Oct 1988 | 78 | 34h :26m |
| William Russell | Ian Chesterton - Tribute | 23 Nov 1963 | 23 Oct 2022 | 78 | 32h :49m |
| Katy Manning | Jo Grant | 2 Jan 1971 | 23 Oct 2022 | 78 | 32h :46m |
| Janet Fielding | Tegan - Kamelion | 28 Feb 1981 | 15 Sep 2023 | 78 | 44h :44m |
| John Levene | Sergeant Benton - Yeti - Cyberman | 25 Feb 1967 | 13 Dec 1975 | 76 | 30h :55m |
| Nicholas Briggs | Dalek Voice - Nestene Voice - Cybermen's voice - Judoon Voice - Supreme Dalek - Voice of Judoon - Museum Narrator - Voice of Skaldak - Cyberman Voice - Zygon Voice - Voice of the Cybermen - Cyber Voices - Daleks - Captain Pol-Kon_Don - Judoon Captain / Clo (Judoon Junior) / Judoon) - Executive Producer - The Daleks - Director - Written By - Barnard / Bellal / The Daleks - Spongiform - The Daleks / Sherlock Holmes - Grand Marshall Xasslyr / Ice Warriors / Cybermen - The Vlinx - John Fairweather | 26 Mar 2005 | 22 Jun 2024 | 72 | 80h :00m |
| John Leeson | Voice of K-9 - K-9 Mark IV - Nucleus Voice - Dugeen - Dalek Voice - Computer Voice - K9 - K9 / Professor Nicely | 1 Oct 1977 | 28 Feb 2021 | 69 | 34h :49m |
| Sarah Sutton | Nyssa - Ann | 31 Jan 1981 | 15 Sep 2023 | 59 | 33h :39m |
| Cy Town | Dalek Operator - Gell Guard - Warrior - Technician (inferno Project) - Bi-Al Member - Soldier (San Martino) - Brethren - Auton - Prisoner - (extra) - Execution Victim - UNIT Patrol - Man at Reception - Gate Guard - Vogan - Party Guest (Enlightenmant) | 24 Jan 1970 | 15 Nov 1989 | 57 | 24h :28m |
| Stuart Fell | Tramp - Stunt Man - Alpha Centauri - Wirrn Operator - Kraal - Morbius - Entertainer - Doctor Who - Stunts - Sontaran - Shrivenzale - Roga - Villager - Fight Arranger - Leela - Giant Rat - Functionary - Acolyte - UNIT Soldier - Styre - Stunt Warrior | 16 Jan 1971 | 25 Nov 1983 | 57 | 25h :27m |
| David Tennant | The Doctor | 18 Jun 2005 | 9 Dec 2023 | 57 | 49h :34m |
| Robert Jewell | Zarbi Operator - Dalek Operator - Clown - Macra Operator | 28 Dec 1963 | 21 Jun 1969 | 55 | 22h :23m |
| Gerald Taylor | Dalek Operator - Zarbi Operator - The voice of WOTAN - Machine Operator - Damon's assistant - Vega Nexos - Baker's Man | 28 Dec 1963 | 23 Mar 1974 | 54 | 22h :23m |
| Matthew Waterhouse | Adric | 25 Oct 1980 | 15 Jan 2022 | 53 | 27h :57m |
| Carole Ann Ford | Susan Foreman | 23 Nov 1963 | 25 Nov 1983 | 52 | 22h :20m |
| Peter Hawkins | Dalek Voice - Cyberman Voice - Marc Cory | 28 Dec 1963 | 1 Jun 1968 | 52 | 21h :32m |
| Derek Hunt | Prison Guard - Metabelis 3 Inhabitant - British Soldier - Atlantean Guard - Technician (inferno Project) - Technician (Pirate Planet) - Bi-Al Member - Waxworks Visitor / Auton Replica - Passenger - UNIT Soldier - Android Mechanic - Time Lord - Guest - James (Footman) - (extra) | 14 Jan 1967 | 6 Dec 1986 | 50 | 20h :43m |
| Lalla Ward | Romana - Princess Astra | 20 Jan 1979 | 28 Feb 2020 | 50 | 22h :15m |
| Louise Jameson | Leela | 1 Jan 1977 | 28 Feb 2021 | 49 | 29h :30m |
| Wendy Padbury | Zoe | 4 May 1968 | 25 Nov 1983 | 49 | 20h :40m |
| Roy Skelton | Monoid - Cyberman Voice - Dalek Voice - Norton - Wester - James - Computer Operator - Kroton Voice - Chedaki - King Rokon - Voice of K-9 | 19 Mar 1966 | 26 Oct 1988 | 49 | 22h :57m |
| Peter Purves | Steven Taylor - Morton Dill | 5 Jun 1965 | 18 Jun 1966 | 47 | 19h :08m |
| Sylvester McCoy | The Doctor | 7 Sep 1987 | 23 Oct 2022 | 46 | 21h :57m |
| Billie Piper | Rose Tyler - The Moment | 26 Mar 2005 | 15 Sep 2023 | 46 | 47h :48m |
| Matt Smith | The Doctor | 1 Jan 2010 | 23 Aug 2014 | 46 | 37h :12m |
| Peter Capaldi | Lobus Caecilius - The Doctor | 12 Apr 2008 | 25 Dec 2017 | 43 | 35h :43m |
| Keith Ashley | Dalek Operator - Zygon - Kyrnoid - Skybase Guard - Metabelis 3 Inhabitant - Trench Soldier - Villager - Atlantean Guard - Citizen (The Savages) - Technician (inferno Project) - Brethren - Auton - Android Mechanic - Man inside capsule - Secretary | 28 May 1966 | 25 Sep 1976 | 43 | 17h :41m |
| Leslie Bates | Kal - Mongol Bandit - 2nd Guard - UNIT Soldier - IE Guard - Tribe of Gum - Bi-Al Member - Time Lord - Metabelis 3 Inhabitant - Exxilon - Army Soldier - Soldier (UNIT) - Security Guard - Williams' Guard - Draconian - TV Unit - Waxworks Visitor / Auton Replica - Lunar Guard - Civil War Soldier - 1862 Confederate Soldier - Pirate - Inn Customer - Man at Lop - Soldier (Redcoat) | 23 Nov 1963 | 22 Oct 1977 | 43 | 18h :12m |
| Richard Franklin | Mike Yates | 2 Jan 1971 | 25 Nov 1983 | 43 | 18h :37m |
| Mike Mungarvan | Dalek Operator - Duty Officer - Knight (Ranulf) - Mutt - Pangol Army - Druid - Taran Noble - Tetrap/Lakertyan/Genii - Tourist in Louve - Detective in Louvre - Soldier (Resurrection) - Sevateem - Zombie - Citizen - Kilroy - Policeman - Gallifreyan - Kinda - Jocondan Guard - Resistance Fighter | 22 Apr 1972 | 25 Dec 2005 | 42 | 18h :26m |
| Steve Ismay | Shada Prisoner - Presidential Guard - (extra) - Peladon Guard - Sea Devil - Bodyguard - Metabelis 3 Inhabitant - TV Unit - Security Guard - Soldier (UNIT) - Levithian Guard - Taran Noble - Slave Worker - Press Photographer - Citizen - Chancellery Guard - UNIT Soldier in Jeep - Security Man - Exxilon | 29 May 1971 | 22 Mar 1982 | 41 | 17h :05m |
| Deborah Watling | Victoria | 27 May 1967 | 27 Apr 1968 | 40 | 16h :03m |
| Maureen O'Brien | Vicki | 2 Jan 1965 | 6 Nov 1965 | 39 | 15h :49m |
| Kevin Manser | Dalek Operator - Zarbi Operator | 28 Dec 1963 | 10 Dec 1966 | 39 | 15h :53m |
| Colin Baker | The Doctor - Commander Maxil | 3 Jan 1983 | 23 Oct 2022 | 38 | 23h :54m |
| Jenna Coleman | Clara - Bonnie | 1 Sep 2012 | 25 Dec 2017 | 38 | 32h :53m |
| Murphy Grumbar | Dalek Operator - Mechonoid - Arcturus - Gell Guard - Functionary | 18 Jan 1964 | 16 Mar 1974 | 38 | 15h :23m |
| Roger Delgado | The Master | 2 Jan 1971 | 31 Mar 1973 | 37 | 15h :03m |
| Michael Craze | Ben | 25 Jun 1966 | 13 May 1967 | 37 | 14h :49m |
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