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- Norman Pace
- Harvey, Survival (1989)
- Wendy Padbury
- Zoe Heriot, The Wheel in Space (1968) - The War Games (1969), The Five Doctors (1983)
- June Page
- Keara, Full Circle (1980)
- Louise Pajo
- Gia Kelly, The Seeds of Death (1969)
- Yolande Palfrey
- Janet, Terror of the Vervoids (1986)
- Geoffrey Palmer
- Masters, Doctor Who and the Silurians (1970)
- Administrator, The Mutants (1972)
- Captain Hardaker, Voyage of the Damned (2007)
- Gregg Palmer
- Shav / Gern, The Tenth Planet (1966)
- Lieut. Lucke, The War Games (1969)
- Sarah Parish
- Empress of the Racnoss, The Runaway Bride (2006)
- Alibe Parsons
- Matrona Kani, Mindwarp (1986)
- Nicholas Parsons
- The Rev. Mr Wainwright, The Curse of Fenric (1989)
- George Pastell
- Eric Kleig, The Tomb of the Cybermen (1967)
- Bill Paterson
- Professor Edwin Bracewell, "Victory of the Daleks" and "The Pandorica Opens" (both 2010)
- Laurence Payne
- Johnny Ringo, The Gunfighters (1966)
- Morix, The Leisure Hive (1980)
- Dastari, The Two Doctors (1985)
- Mary Peach
- Astrid, The Enemy of the World (1967–1968)
- Daniel Peacock
- Nord, The Greatest Show in the Galaxy (1988), (1989)
- Jacqueline Pearce
- Chessene, The Two Doctors (1985)
- Edward Peel
- Kane, Dragonfire (1987)
- Nicholas Pegg
- Dalek Operator - (2005) - (2008)
- Simon Pegg
- The Editor, The Long Game (2005)
- Edmund Pegge
- Meeker, The Invisible Enemy (1977)
- Steve Pemberton
- Strackman Lux, "Silence in the Library"-"Forest of the Dead" (2008)
- Victor Pemberton
- Scientist, The Moonbase (1967)
- Susan Penhaligon
- Lakis, The Time Monster (1972)
- Nicholas Pennell
- Winton, Colony in Space (1971)
- Morris Perry
- Dent, Colony in Space (1971)
- Jon Pertwee
- The Doctor, Spearhead from Space-(1970)-Planet of the Spiders-(1974), The Five Doctors (1983)
- Luan Peters
- Chicki, The Macra Terror (1967)
- Sheila, Frontier in Space (1973)
- Robin Phillips
- Altos, The Keys of Marinus (1964)
- Harriet Philpin
- Bettan, Genesis of the Daleks (1975)
- Donald Pickering
- Eyesen, The Keys of Marinus (1964)
- Captain Blade, The Faceless Ones (1967)
- Beyus, Time and the Rani (1987)
- Ronald Pickup
- Physician, The Reign of Terror (1964)
- Tim Pigott-Smith
- Captain Harker, The Claws of Axos (1971)
- Marco, The Masque of Mandragora (1976)
- Courtney Pine
- Himself, Silver Nemesis (1988)
- Billie Piper
- Rose Tyler, "Rose" - (2005) - "Doomsday" (2006), "Turn Left" - "Journey's End" (2008). Flashbacks; "The Runaway Bride" (2006), "Utopia" (2007), "The Sound of Drums" (2007). Brief cameos; "Partners in Crime, "The Poison Sky", "Midnight" (2008), The End of Time (2010)
- Ingrid Pitt
- Queen Galleia, The Time Monster (1972)
- Solow, Warriors of the Deep (1984)
- Nigel Plaskitt
- Unstoffe, The Ribos Operation (1978)
- Angela Pleasence
- Queen Elizabeth, The Shakespeare Code (2007)
- Anna-Louise Plowman
- Diana Goddard, Dalek (2005)
- Steve Plytas
- Wigner, The Tenth Planet (1966)
- Olaf Pooley
- Professor Stahlman/Director Stahlman, Inferno (1970)
- Martin Potter
- Eirak, Terminus (1983)
- Greg Powell
- Knight, The Time Monster (1972)
- Peter Pratt
- The Master, The Deadly Assassin (1976)
- George Pravda
- Denes, The Enemy of the World (1967)
- Jaeger, The Mutants (1972)
- Castellan Spandrell, The Deadly Assassin (1976)
- Tim Preece
- Codal, Planet of the Daleks (1973)
- Alex Price
- Francesco, "The Vampires of Venice" (2010)
- Brendan Price
- Tomas, The Face of Evil (1977)
- David Prowse
- Minotaur, The Time Monster (1972)
- Bruce Purchase
- The Pirate Captain, The Pirate Planet (1978)
- Peter Purves
- Steven Taylor, The Chase (1965) - The Savages (1966)
- Keith Pyott
- Autloc, The Aztecs (1964)
Read more about this topic: List Of Doctor Who Cast Members