Doctor Who

Cast Roles: O

• O'Brien, Graham (23 episodes, e.g. Bradley Walsh in The Woman Who Fell to Earth)
• O'Donnell (2 episodes, e.g. Morven Christie in Under the Lake)
• O'Hara (2 episodes, e.g. Haydn Wood in Planet of Evil: Part Two)
• Oak (4 episodes, e.g. John Gill in Fury From the Deep: Episode 2)
• OAP (5 episodes, e.g. David Bristowe in The End of Time: Part One)
• OAP (Sally) (Angharad Baxter in The End of Time: Part One)
• Octavian (2 episodes, e.g. Iain Glen in The Time of Angels)
• Odin (David Schofield in The Girl Who Died)
• Odysseus (4 episodes, e.g. Ivor Salter in The Myth Makers: Temple of Secrets)
• Office Foreman (2 episodes, e.g. Basil Tang in Marco Polo: Mighty Kublai Khan)
• Office Worker (11 episodes, e.g. Pam Kane in The End Of The World)
• Officer (8 episodes, e.g. Chris Konyils in The Tenth Planet: Episode 1)
• Officer (John Slavid in The Massacre: Bell of Doom)
• Officer (Thal) (2 episodes, e.g. David Roy Paul in Genesis of the Daleks: Part Three)
• Officia (2 episodes, e.g. John Harvey in The Macra Terror: Episode 3)
• Ogron (42 episodes, e.g. Rick Lester in Day of the Daleks: Episode One)
• Ohica (4 episodes, e.g. Gilly Brown in The Brain of Morbius: Part One)
• Ohila (4 episodes, e.g. Clare Higgins in The Night of the Doctor)
• Ola (4 episodes, e.g. Gertan Klauber in The Macra Terror: Episode 1)
• Old Duke (Michael Mulcaster in The Masque of Mandragora: Part One)
• Old Garner (Burnell Tucker in The Angels Take Manhattan)
• Old Gent (Phil Sutton in Smith and Jones)
• Old Lady (Margaret Paine in Smith and Jones)
• Old Lady (3 episodes, e.g. Cynthia Etherington in The Massacre: The Sea Beggar)
• Old Lady (Jennifer Denning in Listen)
• Old Man (2 episodes, e.g. Sidney Johnson in The Mutants: Episode Three)
• Old Man (2 episodes, e.g. Denis Carey in Timelash: Part One)
• Old Man (Juba Kennerley in The Massacre: The Sea Beggar)
• Old Man (Unka Patel in The Sontaran Stratagem)
• Old Man with Dog (John Holmes in The Dæmons: Episode One)
• Old man's daughter (Frances Valaydon Pillay in The Sontaran Stratagem)
• Old Mother (2 episodes, e.g. Eileen Way in An Unearthly Child: The Cave of Skulls)
• Old Silurian (2 episodes, e.g. Dave Carter in Doctor Who And The Silurians: Episode 5)
• Old Swarm (2 episodes, e.g. Matthew Needham in The Halloween Apocalypse: Flux: Chapter One)
• Old woman/in fog (Angharad Baxter in The Sontaran Stratagem)
• Older Bridesmaid (Diane Dawson in The Runaway Bride)
• Older Guest (4 episodes, e.g. Ben Fido in The Lazarus Experiment)
• Older Monk (David Bailey in The Bells of Saint John)
• Older Passenger (William Ely in Spyfall: Part One)
• Older School Boy (14 episodes, e.g. Harry Ferrier in Human Nature)
• Older Woman (Cordelia Ditton in The Mark of the Rani: Part One)
• Oliver Barnes (2 episodes, e.g. Barry Howard in The End of Time: Part One)
• Oliver Charles (2 episodes, e.g. Eric Potts in Aliens of London)
• Olliphant, Canterbury James (Bhav Joshi in Boom)
• Olson, Zach (Tristan de Beer in Praxeus)
• Olvir (4 episodes, e.g. Dominic Guard in Terminus: Part One)
• Olympic 2012 Athlete (Elliot Barnes-Worrell in Good as Gold)
• Omega (8 episodes, e.g. Peter Davison in Arc of Infinity: Part Four)
• Omega's Champion (Alan Chuntz in The Three Doctors: Episode Three)
• Omril (3 episodes, e.g. Andrew Forbes in Full Circle: Part One)
• Onegin (James Norton in Cold War)
• Onlooker (16 episodes, e.g. Gemma Brittle in Partners in Crime)
• Onlookers/Policeman (Bob Davies in Fear Her)
• Ood (53 episodes, e.g. Paul Kasey in The Impossible Planet)
• Ood Sigma (4 episodes, e.g. Paul Kasey in Planet of the Ood)
• Ood Sigma (Voice) (2 episodes, e.g. Silas Carson in The End of Time: Part One)
• Operative (US) (Brian Law in Spyfall: Part One)
• Operator (Tanroh Ishida in The Return Of Doctor Mysterio)
• Optera (8 episodes, e.g. Len Russell in The Web Planet: Crater of Needles)
• Opthalmologist (3 episodes, e.g. Jim McManus in The Invisible Enemy: Part Two)
• Orcini (2 episodes, e.g. William Gaunt in Revelation of the Daleks: Part One)
• Orderly (34 episodes, e.g. Richard Ashley in Frontios: Part One)
• Orderly (David Beck in The Power Of Three)
• Orderly (Daniel Beck in The Power Of Three)
• Orfe (4 episodes, e.g. Jonathan Newth in Underworld: Part One)
• Organon (3 episodes, e.g. Geoffrey Bayldon in The Creature from the Pit: Part Two)
• Orin Scannell (Anthony Flanagan in 42)
• Orson Pink (Samuel Anderson in Listen)
• Ortezo (4 episodes, e.g. Leon Davis in The Trial of a Time Lord (Terror of the Vervoids): Part Nine)
• Ortron (5 episodes, e.g. Frank Gatliff in The Monster of Peladon: Part One)
• Orum (4 episodes, e.g. Terence Lodge in Carnival Of Monsters: Episode One)
• Osborn (Sneh Gupta in Resurrection of the Daleks: Part One)
• Oscar (Paul Anderson in Evolution of the Daleks)
• Oscar Botcherby (3 episodes, e.g. James Saxon in The Two Doctors: Part One)
• Osgood (5 episodes, e.g. Ingrid Oliver in The Day of The Doctor)
• Osgood (Harry Towb in The Seeds of Death: Episode One)
• Oswald, Oswin (Elena Allsopp in The Name of the Doctor)
• Other Dave (2 episodes, e.g. O T Fagbenle in Silence in the Library)
• Other Dave Suit Creature (Sean Saye in Forest of the Dead)
• Other Soldier Drivers (Charles Afele in Planet of the Dead)
• Outler (2 episodes, e.g. Nick Staverson in Full Circle: Part One)
• Overlord Guard (Terry Walsh in The Mutants: Episode One)
• Overseer (Ralph Watson in The Underwater Menace: Episode 4)
• Overseer (Simon Ludders in Thin Ice)
• Overseer (2 episodes, e.g. Graham Ashley in The Underwater Menace: Episode 2)
• Owens, Craig (3 episodes, e.g. James Corden in Closing Time)