Update: this is now confirmed in an interview here
Rumour has it that John Barrowman is set to reveal in upcoming interviews that he will be joining the Doctor Who team for filming after Christmas.
So our question is, will his character, Captain Jack, be around at the same time as Freema’s episodes with Martha Jones? Will the time trio be reunited again for the fans? What evil could cause them to all join up again? With Donna Noble around this time, it might be getting awfully crowded in that console room!
Captain Jack’s appearance in Doctor Who S4 is now confirmed in an interview with John Barrowman, near the bottom here.
And then you’ll be coming back as Captain Jack in the New Year…
I’m not in the Doctor Who Christmas special, but I come back in Series Four, which starts filming after Christmas. Series Two of Torchwood also starts airing on BBC2 in January.
I think this ones true. They had a big fuss when he came back in series three. Why not have the fuss again??? Magazines with “Jack’s back!” will be plastered everywhere.
Rumours have it that The Doctor and Donna will be joined by Martha, Captain Jack, K9, Sarah to fight the evil Davros - creator of the Daleks!!!!
I bet at the end of Torchwood, the Dr will invite martha and jack
i hope he does come back
maby face an old enemy like the daleks from a parreler world or the cyber men from this 
even better davaros the creattor of the daleks 
sounds exciting Donna and Jack might just hit it off
methinks this is wishful thinking along the lines of sarah-jane, rose, mickey, k9, the brig, davros, the rani, and romana all being reunited for the finale. rtd said he thought jack’s story in doctor who was done for the time being…
oh i hope this is true!!! sooo excited! i read a rumor a while back saying that a whole lot of them would be back and together in the last few eps to fight off the baddies…i dont wanna say who incase its true. how exciting! i can’t wait…already!
I’d love to!! They were a great team actually
and with Donna it is going to be funny.
Jack “Captain Jack Harkness and you are…?”
Donna: “Single”
Martha and Doctor “Donna!”
Jack “Haaaaaa, this time it wasn’t for me!”
Captain Jack’s appearance in Doctor Who S4 is now confirmed in an interview with John Barrowman, near the bottom here.