Doctor Who: Captain Jack Harkness [ESTP]

Extroverted Sensing (Se): When faced with a problem Captain Jack almost always takes the direct approach. When he sees that the Utopia project needs power he immediately plugs it in...even though the wires are live with electricity. Aboard the Valiant he finds the Paradox machine. Knowing that the Doctor wants it eliminated he simply opens fire with an automatic weapon an effective and immediate solution. His reckless inclinations pairs well with the fact that he can’t die and he takes full advantage. He flirts with anyone and everyone he meets unashamedly. When he thinks he’s about to die for real he activates "Protocol 417," gin, vodka, dry vermouth, and lemon twist.  

Introverted Thinking (Ti): While Captain Jack likes the direct approach, he understands the consequences and usually has an outcome in mind based a deduction. He concocts a plan to con The Doctor when they first meet, trying to sell him a “warship” which is actually a medical ship. (Unfortunately he’s trying to con The Doctor and we all know how that ends) He doesn’t usually talk about his ideas, keeping them to himself. The fact that he left the time agency shows that he values autonomy and he excels as a solitary operative or with a small team.     

Extroverted Feeling (Fe): While often putting up a “Tough guy” front, Captain Jack is actually very sensitive to criticism. His usually, “guns blazing” attitude is subdued at a word from the Doctor. When the Doctor is around Jack strive to keep him happy, refraining from using weapons when possible. His naturally independent nature contrasts with his urge to please. He left the Time Agency after learning that they altered his memories, feeling betrayed. He comes back to save the Doctor and Rose from a falling bomb, as opposed to an Fi/Te who may have seen it as “not his problem.”   

Introverted Intuition  (Ni): Paired with his Ti, Jack’s Ni helps him understand the consequences of his reckless actions and direct them in a way that is helpful. On occasion Jack has good foresight, such as the time he plans to intercept the Doctor in Cardiff when comes back to refuel. Captain Jack also envisions a new Torch-wood and works to bring the organization back in a form that eliminates it's old mistakes.

I considered ESFP for a while until I realized how he will put aside his own impulses when other people disprove, specifically The Doctor. He always accepts the Doctor's verdict and avoids open confrontation, A natural Fe trait.