| First appearance | Villain or alien |
| 'Rose' | |
| 'Rose' | |
| 'The End of the World' | |
| 'The End of the World' | |
| 'The Unquiet Dead' | |
| 'Aliens of London' | |
| 'The Long Game' | |
| 'The Long Game' | |
| 'Father's Day' | |
| 'The Empty Child' | |
| 'The Parting of the Ways' | |
| 'The Christmas Invasion' | |
| 'New Earth' | |
| 'Tooth and Claw' | |
| 'School Reunion' | |
| 'The Girl in the Fireplace' | |
| 'Age of Steel' | |
| 'The Idiot's Lantern' | |
| 'The Impossible Planet' | |
| 'The Impossible Planet' | |
| 'Love and Monsters' | |
| 'Fear Her' | |
| 'The Runaway Bride' | |
| 'Smith and Jones' | |
| | First appearance | Villain or alien |
| 'Smith and Jones' | |
| 'The Shakespeare Code' | |
| 'Gridlock' | |
| 'The *name* Experiment' | |
| '42' | |
| 'Human Nature' | |
| 'Blink' | |
| 'Utopia' | |
| 'Utopia' | |
| 'The Sound of Drums' | |
| 'Voyage of the Damned' | |
| 'Voyage of the Damned' | |
| 'Partners in Crime' | |
| 'Partners in Crime' | |
| 'Fires of Pompeii' | |
| 'Planet of the Ood' | |
| 'The Poison Sky' | |
| 'The Doctor's Daughter' | |
| 'The Doctor's Daughter' | |
| 'The Unicorn and the Wasp' | |
| 'Silence in the Library' | |
| '*name*' | |
| 'Turn Left' | |
| 'Turn Left' | |
| | First appearance | Villain or alien |
| 'The Stolen Earth' | |
| 'The Next Doctor' | |
| 'Planet of the Dead' | |
| 'The Waters of Mars' | |
| 'The End of Time' | |
| 'The End of Time' | |
| 'The Eleventh Hour' | |
| 'The Eleventh Hour' | |
| 'The Eleventh Hour' | |
| 'The Beast Below' | |
| 'The Beast Below' | |
| 'The Vampires of Venice' | |
| 'Amy's Choice' | |
| 'Amy's Choice' | |
| 'The Hungry Earth' | |
| 'Vincent and the Doctor' | |
| 'The Lodger' | |
| 'The Pandorica Opens' | |
| 'The Big Bang' | |
| 'A Christmas Carol' | |
| 'A Christmas Carol' | |
| 'The Impossible Astronaut' | |
| 'The Curse of the Black Spot' | |
| 'The Curse of the Black Spot' | |
| |
| |
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