He is one of the more profound characters of the show and is the unofficial leader of the group of assassins. Booth leads the group in stating "All you have to do is move your little finger, squeeze your little finger, and you can change the world"
Booth also is shown to have a temper at one point striking Lee Harvey Oswald and swearing. Booth is also shown to have a great knowledge of plays stating at one point "Attention must be paid!" from Death of a Salesman in a conversation with Oswald which plays out like this.
Booth- Attention must be paid!
Oswald- What does the mean?
Booth- It's from a play Lee, about a poor misguided fool who runs out of options so he decides to kill himself. His wife stands at his grave begging the world to pay attention to this simpleton. Now Lee, I'm an actor and a good one, but Willy Loman is a part that I could never play and I don't think you should play it either.
Booth also demonstrates supernatural abilities as he comes back from the dead along with the other assassins and turns curtain rods in a sniper rifle.
He also convinces Oswald the shoot JFK.
In summery Booth in a smooth talking supernatural assassin. Pretty awesome