In the episode, "The Empty Child." Christopher Eccleston starred as the ninth doctor. It was in season one, 2005. The companion was Rose Tyler, played by Billie Piper.
Captain Jack Harkness first appeared in the 2005 episode "The Empty Child" of Doctor Who's first revived series. He went on to become a recurring character and fan favorite in the show.
Captin Jack is a fictional man, from the BBC series Doctor Who and Torchwood.
At the moment there are no plans for him to return to Doctor Who.
It was Captain Jack Harkness.
Yes he did, and the Doctor gave him an answer, in the series 3 episode "Utopia".
No, as of 2012 he has never currently been on Torchwood. However characters from Torchwood (mostly Captain Jack Harkness) have appeared in Doctor Who.
It's Harkness, although that is not his real name, he stole the identity of the real Captain Jack during WW1. His real identity is unknown.
John Barrowman
Torchwood - 2006 Captain Jack Harkness 1-12 is rated/received certificates of: UK:12
CAPTAIN JACK HARKNESS
There's some evidence that it may be Captain Jack Harkness.
If I am understanding your question correctly then this question is more a matter of opinion. For me the biggest "show off" would probably be Captain Jack Harkness.
John Barrowman who plays Captain Jack Harkness in Torchwood is gay in real life, he went for the part of Will in "Will and Grace" but they said that he did not look gay enough for the part.