David Tennant (my personal favourite) acted as the 10th Doctor. Most episodes were action-packed with some heartbreaking scenes. He even made a return AFTER he regenerated in the 50th anniversary of the show.
All Tennant Stories :
The Christmas Invasion (First Annual Christmas Special)
New Earth
Tooth and Claw
School Reunion
The Girl in the Fireplace
Rise of the Cybermen/The Age of Steel
The Idiots Lantern
The Impossible Planet/The Satan Pit
Love & Monsters
Fear Her
Army of Ghosts/Doomsday
The Runaway Bride
Smith and Jones
The Shakespeare Code
Gridlock
Daleks in Manhattan/Evolution of the Daleks
The Lazarus Experiment
42
Human Nature/The Family of Blood
Blink
Utopia
The Sound of Drums/The Last of the Time Lords
Voyage of the Damned
Partners in Crime
The Fires of Pompeii
Planet of the Ood
The Sontaran Stratagem/The Poison Sky
The Doctor's Daughter
The Unicorn and the Wasp
Silence in the Library/Forest of the Dead
Midnight
Turn Left
The Stolen Earth/Journey's End
The Next Doctor
Planet of the Dead
The Waters of Mars
The End of Time (Part 1 & 2)
The Day of the Doctor
The End of Time Part 2 and Doomsday were very emotional episodes. In Doomsday, the Doctor said goodbye to his loyal companion Rose only for her to return in Series 4. In 'The End of Time', he regenerated giving a heart-breaking exit.
YOU ARE READING
Every Who Story
Science FictionFrom William Hartnell in 1963 to Peter Capaldi in 2015 here is every single Doctor Who story