G
- Christopher Gable
- Sharaz Jek, The Caves of Androzani (1984)
- Jack Galloway
- Joseph Willow, The Awakening (1984)
- James Garbutt
- Ronson, Genesis of the Daleks (1975)
- Adam Garcia
- Alex, "The Christmas Invasion" (2005)
- Jimmy Gardner
- Chenchu, Marco Polo (1964)
- Idmon, Underworld (1978)
- Mark Gatiss
- Professor Richard Lazarus, "The Lazarus Experiment" (2007)
- Frank Gatliff
- Ortron, The Monster of Peladon (1974)
- William Gaunt
- Orcini, Revelation of the Daleks (1985)
- Tom Georgeson
- Kavell Genesis of the Daleks (1975)
- Detective Inspector, Logopolis (1981)
- Henry Gilbert
- Torbis, The Curse of Peladon (1972)
- Marcus Gilbert
- Ancelyn, Battlefield (1989)
- Sean Gilder
- Sycorax Leader, "The Christmas Invasion" (2005)
- Don Gilet
- Lance Bennett, "The Runaway Bride" (2006)
- Peter Gilmore
- Brazen, Frontios (1984)
- Simon Gipps-Kent
- Seth, The Horns of Nimon (1979) - (1980)
- Jeremy Gittins
- Lazlo, Warriors' Gate (1981)
- Peter Glaze
- Third Sensorite/City Administrator, The Sensorites (1964)
- Iain Glen
- Father Octavian, "The Time of Angels"-"Flesh and Stone" (2010)
- Robert Glenister
- Major Salateen, The Caves of Androzani (1984)
- Brian Glover
- Griffiths, Attack of the Cybermen (1985)
- Julian Glover
- Richard The Lionheart, The Crusade (1965)
- Count Scarlioni / Scaroth / Captain Tancredi, City of Death (1979)
- Liza Goddard
- Kari, Terminus (1983)
- Patrick Godfrey
- Tor, The Savages (1966)
- Major Cosworth, The Mind of Evil (1971)
- Michael Goldie
- Craddock, The Dalek Invasion of Earth (1964)
- Elton Laleham, The Wheel in Space (1968)
- David Gooderson
- Davros, Destiny of the Daleks (1979)
- Tom Goodman-Hill
- Reverend Golightly, "The Unicorn and the Wasp" (2008)
- Colin Gordon
- Commandant, The Faceless Ones (1967)
- Hannah Gordon
- Kristy McClaren, The Highlanders (1966)
- Marius Goring
- Theodore Maxtible, The Evil of the Daleks (1967)
- Pat Gorman
- Cyberman, The Invasion (1968)
- Military Policeman, The War Games (1969)
- Silurian / Silurian Scientist, Doctor Who and the Silurians (1970)
- Primord, Inferno (1970)
- Auton Leader, Terror of the Autons (1971)
- Primitive / Long / Colonist, Colony in Space (1971)
- Sea Devil, The Sea Devils (1972)
- UNIT Corporal, Invasion of the Dinosaurs (1974)
- Soldier, Planet of the Spiders (1974)
- Thal Soldier, Genesis of the Daleks (1975)
- Soldier, The Masque of Mandragora (1976)
- A Medic, The Invisible Enemy (1977)
- Pilot, The Armageddon Factor (1979)
- Gordon Gostelow
- Milo Clancy, The Space Pirates (1969)
- Michael Gough
- The Toymaker, The Celestial Toymaker (1966)
- Councillor Hedin, Arc of Infinity (1983)
- Anita Graham
- Bollit, Delta and the Bannermen (1987)
- David Graham
- Dalek voices, The Daleks (1963-1964), The Dalek Invasion of Earth (1964), The Chase (1965), Mission to the Unknown (1965) and The Daleks' Master Plan (1965-1966)
- Charlie the Bartender, The Gunfighters (1966)
- Kerensky, City of Death (1979)
- Gawn Grainger
- George Stephenson, The Mark of the Rani (1985)
- Leslie Grantham
- Kiston, Resurrection of the Daleks (1984)
- Dolores Gray
- Mrs. Remington, Silver Nemesis (1988)
- Elspet Gray
- Chancellor Thalia, Arc of Infinity (1983)
- Simon Greenall
- Mr Skinner, "Love & Monsters" (2006)
- Sarah Greene
- Varne, Attack of the Cybermen (1985)
- Mark Greenstreet
- Ikona, Time and the Rani (1987)
- Pamela Greer
- Lizan, The Daleks' Master Plan (1965)
- Tamsin Greig
- Nurse, "The Long Game" (2005)
- Brian Grellis
- Sheprah, Revenge of the Cybermen (1975)
- Safran, The Invisible Enemy (1977)
- Megaphone Man, Snakedance (1983)
- Clinton Greyn
- Ivo, State of Decay (1980)
- Stike, The Two Doctors (1985)
- David Griffin
- Lt. Commander Mitchell, The Sea Devils (1972)
- Helen Griffin
- Mrs Moore, "Rise of the Cybermen" - "The Age of Steel" (2006)
- Sara Griffiths
- Ray, Delta and the Bannermen (1987)
- Christopher Guard
- Bellboy, The Greatest Show in the Galaxy (1988)
- Dominic Guard
- Olvir, Terminus (1983)
Read more about this topic: List Of Doctor Who Cast Members