| Actor | Role | First | Last | No of episodes | Duration |
|---|
| John Levene | Sergeant Benton - Yeti - Cyberman | 2 Nov 1968 | 13 Dec 1975 | 67 | 27h :13m |
| Richard Franklin | Mike Yates | 2 Jan 1971 | 25 Nov 1983 | 43 | 18h :37m |
| Roger Delgado | The Master | 2 Jan 1971 | 31 Mar 1973 | 37 | 15h :03m |
| Anthony Ainley | Tremas - The Master - Kalid - Sir Gilles - Kamelion - Portreeve | 31 Jan 1981 | 6 Dec 1989 | 30 | 14h :55m |
| Roy Skelton | Monoid - Cyberman Voice - Dalek Voice - Norton - Wester - James - Computer Operator - Kroton Voice - Chedaki - King Rokon - Voice of K-9 | 20 May 1967 | 26 Oct 1988 | 26 | 12h :15m |
| Camille Coduri | Jackie Tyler | 26 Mar 2005 | 15 Sep 2023 | 25 | 31h :33m |
| Hannah Welch | Crowd ADR - Additional Dialogue | 23 Apr 2005 | 25 Dec 2008 | 23 | 18h :00m |
| Daryl Adcock | Additional Dialogue - Crowd ADR - Voice of the Captain | 23 Apr 2005 | 25 Dec 2008 | 23 | 18h :47m |
| Lindsay Hollingsworth | Crowd ADR | 29 Apr 2006 | 25 Dec 2008 | 19 | 15h :40m |
| Kevin Stoney | Mavic Chen - Tobias Vaughn - Tyrum | 13 Nov 1965 | 21 Dec 1968 | 19 | 7h :39m |
| 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) | 23 Jan 1971 | 22 Nov 1975 | 18 | 7h :19m |
| Peter Miles | Professor Whitaker - Secretary to Grover Voice - Dr. Lawrence - Nyder | 31 Jan 1970 | 12 Apr 1975 | 17 | 6h :48m |
| Michelle Gomez | The Master | 23 Aug 2014 | 1 Jul 2017 | 15 | 12h :18m |
| Lynda Bellingham | The Inquisitor | 6 Sep 1986 | 6 Dec 1986 | 14 | 5h :49m |
| Michael Jayston | The Valeyard | 6 Sep 1986 | 6 Dec 1986 | 14 | 5h :49m |
| Bernard Kay | Carl Tyler - Saladin - Crossland - Caldwell | 21 Nov 1964 | 15 May 1971 | 14 | 5h :43m |
| 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 | 31 Oct 2020 | 15 Jan 2022 | 14 | 17h :15m |
| Valentine Dyall | Black Guardian | 24 Feb 1979 | 9 Mar 1983 | 13 | 5h :19m |
| Paula Keogh | Additional Dialogue - Crowd ADR | 23 Apr 2005 | 12 Apr 2008 | 13 | 10h :14m |
| Michael Sheard | Rhos - Dr. Summers - Laurence Scarman - Lowe - Mergrave - Headmaster | 30 Jan 1971 | 22 Oct 1977 | 12 | 4h :50m |
| Christopher Benjamin | Colonel Hugh Curbishley - Sir Keith Gold - Henry Gordon Jago | 9 May 1970 | 2 Apr 1977 | 12 | 4h :47m |
| Ronald Allen | Ralph Cornish - Rago | 10 Aug 1968 | 2 May 1970 | 12 | 4h :52m |
| Philip Madoc | Eelek - War Lord - Solon - Fenner | 31 May 1969 | 13 Jan 1979 | 12 | 4h :46m |
| Donald Pickering | Eyesen - Blade - Beyus | 9 May 1964 | 28 Sep 1987 | 12 | 4h :52m |
| Jack Watling | Travers | 30 Sep 1967 | 9 Mar 1968 | 12 | 4h :51m |
| David Collings | Vorus - Poul - Mawdryn | 19 Apr 1975 | 9 Feb 1983 | 11 | 4h :26m |
| Frederick Jaeger | Jano - Sorenson - Professor Marius | 28 May 1966 | 22 Oct 1977 | 11 | 4h :21m |
| Martin Jarvis | Hilio - Butler - Governor | 6 Mar 1965 | 26 Jan 1985 | 10 | 4h :47m |
| Nicholas Cater | Additional Dialogue - ADR | 30 Apr 2005 | 5 Jul 2008 | 10 | 8h :02m |
| Bernard Archard | Bragen - Marcus Scarman | 5 Nov 1966 | 15 Nov 1975 | 10 | 4h :04m |
| Bernard Horsfall | Taron - A Stranger - Gulliver - First Time Lord - Chancellor Goth | 7 Apr 1973 | 20 Nov 1976 | 10 | 3h :55m |
| John Ringham | Tlotoxl - Blake - Ashe | 23 May 1964 | 15 May 1971 | 10 | 4h :05m |
| David Savile | Winser - Lieutenant Carstairs - Crichton | 19 Apr 1969 | 21 Jun 1969 | 10 | 4h :01m |
| Jacqueline King | Sylvia Noble | 25 Dec 2006 | 25 Nov 2023 | 10 | 9h :05m |
| Colin Douglas | Donald Bruce - Reuben | 23 Dec 1967 | 24 Sep 1977 | 10 | 3h :55m |
| Michael Wisher | Dalek Voice - John Wakefield - Rex Farrel - Kalik - Davros - Magrik - Morelli - Ranjit | 2 Jan 1971 | 12 Apr 1975 | 10 | 3h :57m |
| Donald Sumpter | Commander Ridgeway - Enrico Casali - Rassilon | 27 Apr 1968 | 5 Dec 2015 | 10 | 4h :34m |
| Ronald Leigh-Hunt | Radnor - Commander Stevenson | 25 Jan 1969 | 10 May 1975 | 10 | 4h :22m |
| Wanda Ventham | Jean Rock - Thea Ransome - Faroon | 8 Apr 1967 | 19 Nov 1977 | 10 | 3h :58m |
| David Banks | Cyber Leader | 8 Mar 1982 | 7 Dec 1988 | 10 | 5h :50m |
| Prentis Hancock | 2nd Reporter - Vaber - Salamar - Captain | 7 Apr 1973 | 18 Oct 1975 | 9 | 3h :31m |
| Jemma Redgrave | Kate Lethbridge-Stewart - Kate Stewart | 22 Sep 2012 | 23 Oct 2022 | 9 | 8h :31m |
| Tony Selby | Glitz | 6 Sep 1986 | 7 Dec 1987 | 9 | 3h :45m |
| Peter Halliday | Silurian Voice - Alien Voice - Pletrac - Packer - Jagaroth Voice - Soldier - Vicar | 2 Nov 1968 | 21 Dec 1968 | 8 | 3h :13m |
| Mark Benton | Clive | 26 Mar 2005 | 15 Oct 2022 | 8 | 16h :24m |
| Edward Brayshaw | Leon Colbert - War Chief | 3 May 1969 | 21 Jun 1969 | 8 | 3h :11m |
| Pamela Salem | Xoanon - Toos - Rachel | 29 Jan 1977 | 26 Oct 1988 | 8 | 3h :14m |
| Shaun Dingwall | Pete Tyler | 14 May 2005 | 30 Sep 2019 | 8 | 7h :41m |
| Julian Glover | Richard the Lionheart - Count | 27 Mar 1965 | 20 Oct 1979 | 8 | 3h :16m |
| Tom Chadbon | Duggan - Merdeen - Jagaroth Voice | 29 Sep 1979 | 27 Sep 1986 | 8 | 3h :18m |
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