Doctor Who has had many different “Doctors” over the decades, but they’re all the same character: a Time Lord who periodically regenerates into a new body and personality while keeping their memories.

How many Doctors are there?

If you mean the main incarnations on TV:

  • Classic and modern main Doctors: from the First Doctor (William Hartnell) in 1963 up through Ncuti Gatwa’s Fifteenth Doctor starting in 2023.
  • A common “headline” list includes fourteen lead actors up to Gatwa, counting David Tennant twice (as Tenth and later Fourteenth).
  • If you include specials and “side” incarnations like the War Doctor, Fugitive Doctor, Meta-Crisis Doctor, and the Valeyard, fans often talk about around 18–19 distinct versions.

The exact count depends on whether you include those extra incarnations and variants, which is why you’ll see different numbers in fan discussions.

Main Doctors in order (quick tour)

Here’s a streamlined run through the core TV Doctors so you can orient yourself in the timeline.

  1. First Doctor – William Hartnell (1963–1966): The original, more stern and mysterious, gradually softening into a grandfatherly figure.
  1. Second Doctor – Patrick Troughton (1966–1969): More playful and scruffy, often described as a “cosmic hobo.”
  1. Third Doctor – Jon Pertwee (1970–1974): Action‑oriented, stranded on Earth for a while, working closely with UNIT.
  1. Fourth Doctor – Tom Baker (1974–1981): Iconic long scarf, eccentric and bohemian vibe, one of the longest‑running and most famous.
  1. Fifth Doctor – Peter Davison (1982–1984): Younger, more vulnerable, with a cricket‑inspired look.
  1. Sixth Doctor – Colin Baker (1984–1986): Bold, bombastic, notorious for his loud, colorful coat.
  1. Seventh Doctor – Sylvester McCoy (1987–1989): Starts whimsical, becomes darker and more manipulative near the end of the classic run.
  1. Eighth Doctor – Paul McGann (1996): Mainly seen in the 1996 TV movie and later mini‑episodes, romantic and Byronic in style.
  1. Ninth Doctor – Christopher Eccleston (2005): Relaunch Doctor, leather jacket, war‑scarred but warm, only one TV season.
  1. Tenth Doctor – David Tennant (2005–2010): Very popular, energetic, emotional, with key companions like Rose and Donna.
  1. Eleventh Doctor – Matt Smith (2010–2013): Youngest actor at the time, quirky “old man in a young body” energy, bowties and fezzes.
  1. Twelfth Doctor – Peter Capaldi (2014–2017): Older, pricklier at first, evolving into a reflective, intense mentor figure.
  1. Thirteenth Doctor – Jodie Whittaker (2018–2022): First woman in the role, with an optimistic, team‑oriented style.
  1. Fourteenth Doctor – David Tennant again (2023): A new incarnation with Tennant returning for the 60th anniversary specials.
  1. Fifteenth Doctor – Ncuti Gatwa (from 2023): Brings a bold, charismatic, contemporary vibe as the newest main Doctor.

Extra and “bonus” Doctors fans talk about

Beyond the numbered ones, there are special incarnations that often come up in “doctor who doctors” conversations:

  • War Doctor (John Hurt): A previously unseen incarnation between the Eighth and Ninth Doctors, introduced in the 50th anniversary special.
  • Fugitive Doctor (Jo Martin): A hidden incarnation whose existence complicates the usual numbering, revealed in the modern era.
  • Meta‑Crisis Doctor (David Tennant): A part‑human offshoot of the Tenth Doctor created during a regeneration gone wrong.
  • The Valeyard: A darker amalgamation of the Doctor, presented as an antagonist rather than a straightforward incarnation.

Some fan and media lists include these when they say “all 18” or “19” Doctors, which is why headline counts can differ from the simple numbered list.

How fans rank the Doctors

Fan forums are constantly debating which Doctor is “best,” and the answers are all over the place:

  • Many people still put the Tenth, Fourth, and Eleventh Doctors near the top of their personal rankings.
  • Others champion less mainstream favorites like the Eighth, Seventh, or Twelfth Doctors.
  • Some posts note that Jodie Whittaker’s lower placement in a few lists feels more about the writing than her performance.
  • Newer incarnations (like the Fourteenth and Fifteenth Doctors) often surge in popularity as their episodes air and people re‑evaluate older rankings.

You’ll see a lot of posts where users share a “top 5” and then revise them as new specials and seasons arrive.

A fun way to dive in

If you’re just starting to explore the different Doctors, an easy entry path is:

  1. Pick one classic Doctor episode (Tom Baker or Sylvester McCoy).
  2. Watch a “modern” starting point like Eccleston’s 2005 series.
  3. Sample an anniversary special where multiple Doctors interact, to see how their personalities bounce off each other.

This gives you a quick feel for how the same character can change radically from incarnation to incarnation while still clearly being the Doctor.

Information gathered from public forums or data available on the internet and portrayed here.