Second Doctor

The Second Doctor (also known as Patrick Troughton) is the last of the classic Doctors to join the Doctor's army, making his first appearance in the 5th episode of Season 9.

Personality
The Second Doctor is whimsical, somewhat buffoonish, but still witty. Despite his bluster and tendency to panic when things get out of control, he always acts heroically and morally in his desire to help the oppressed and fight what he calls "The most terrible things in the universe".

Mercurial, clever and always a few steps ahead of his enemies, he is sometimes a calculating schemer who would not only manipulate people for the greater good, but also act like a bumbling fool to have his enemies underestimate his true abilities. Even though he occasionally gave the impression that he had no idea what he was doing, this is simply an act to fool his enemies.

He is very childlike in his love of play, occasionally playing on his recorder.