The 10 best David Tennant Doctor Who episodes, ranked

Not only does the 2006 Christmas special serve as the first meeting between Donna and the Doctor, but it also shows the Time Lord at his lowest, having been forced to say goodbye to former companion Rose Tyler moments before.

Planet of the Ood cements Donna’s true realization that the wonders of the universe are not always what they’re cracked up to be. Exploring planet Ood-Sphere in 4126, the pair look to free its Ood inhabitants who are being sold off as slaves. It’s an underrated adventure that features a serious undertone that’s not afraid to put capitalism under the spotlight.

Tennant and Tate’s chemistry here is fantastic alongside some adrenaline-packed action on display  – most notably, the scene where a giant crane chases the Tenth Doctor in a shipping warehouse while Donna gets shoved in a container filled with lots of possessed Ood.

No monster in sight, the Doctor finds himself onboard a small, claustrophobic shuttle that is designed to visit a waterfall made of sapphires on the planet Midnight. Things get out of hand when the leisurely trip comes to a halt and suddenly trust between the humanoid passengers begins to break down.

We then get the masterclass performance from Tennant as he deals with each individual passenger before slowly being possessed by some sort of hidden entity. It’s brilliantly penned, and even more impressive when you find out that Davies wrote the script over the course of a weekend.

If any story is a celebration of modern Doctor Who it’s the Season 4 two-part finale. Bringing back all of the companions from the Tenth Doctor’s era to take on the Daleks in stupendous fashion still remains a highlight 15 years on.

Okay, so technically this isn’t a David Tennant story as the 50th-anniversary special is led by Matt Smith’s 11th incarnation of the Doctor, yet it’s still a wonderful treat to see the two share the same screen. Throw in John Hurt as the “War Doctor” and we get three amazing actors trying to outdo each other at every turn.

Tennant holds his own incredibly well playing up “the man who regrets” philosophy that embodied large parts of the character’s tenure, proving that whenever called upon, the man can deliver.

What’s great about The Waters of Mars is how far the Tenth Doctor needs to be pushed before he breaks the laws of time. Arriving on humanity’s first colony on Mars in the year 2059, the Galifreyan battles an intelligent virus known as the Flood that takes over the explorer’s bodies one by one, alongside grappling with the destruction of the base that becomes a fixed point in time.

It’s eerie, dark, and very frightening as water streams out the monster’s cracked lips. Without a companion, this 60-minute special from 2009 represents the consequences of why the Doctor doesn’t travel alone better than most.

The swansong for Tennant has everything: action, comedy, scares, twists, heartbreak, and a showstopper performance from the Scot. Doing his best to avoid death, the Doctor’s psychotic archenemy, The Master, returns to take over the planet Earth with major consequences that push one another to the brink.

It’s a spectacle of a two-parter, but at the heart of it is the Tenth Doctor and Wilfred Mott (Donna’s grandad played by the wonderful Bernard Cribbins). The somber conversations between the old soldier and the 906-year-old Time Lord are what makes this episode so special. We can’t wait to see them both onscreen together in the 60th for the final time.