I listened to the scene like 20 times. And when Christian gets out of the car to go into the bar (and see's sawyer), Ana calls Christian "Dad".

I'm pretty sure thats what she said.

I never thought of that before.

Sorry, no...she says "wait...don't."

well there is only one so far on the island with a austrailian accent...could it be ..i think that will turn out to be his sister

Has to be Claire that is Jack's sis. Or may be not I am bias (hence the name HotForClaire)

well there is only one so far on the island with a austrailian accent...could it be ..i think that will turn out to be his sister

Well...she may not have had as much of an accent as Claire...but Cindy resided in Austrailia, as well. Jack's sister doesn't necessarily HAVE to be Austrailia. Nice how she's been mysteriously out of the picture for the past 14 episodes...I think we're being "set up" by TPTB to think Claire is Jack's sis...but that just my opinion.

As for Ana saying "Dad"? No way. I can't believe you watched that 20 times and still came up with "Dad". It's just a Jakko said...She says..."Wait...don't"....It's not even close!!

I have to say that I really don't think it's possible that Ana Lucia is Jack's half sister.. The blonde lady who answered the door + Jack's dad doesn't equal a latina looking, darker skinned girl with black hair. It just doesn't add up.

Actually I think that Jack might have been adopted and that Locke is Jack's real father.
Also, Jack kissed that girl the night his wife left him. I think that they got together later that night and she got pregnant from the encounter. She had a baby without Jack knowing and it was Walt. Walt must have been switched with Michael's real baby in the hospital.
And I think that when in college, Jack took ecstacy one night and didn't realize that he had a homosexual encounter who ended up being Sawyer. Jack doesn't remember this at all but Sawyer realizes it at a subconcious level and that is why he hates Jack.
All these theories on these boards make me laugh.

Eww. If Ana-Lucia was Jack's sister, that makes all their airport flirting and jungle romps really skeevy. :eek2:

Well, Java...laughing is a good thing.

I am pretty sure that Claire is Jack's half sister since the blonde woman who answered the door certainly looked like Claire's mom or older sister. It's such a small world...

Jack's sister doesn't have to be Australian. Her mother could be Australian and living in the States when she got pregnant. Maybe she just moved back to Australia. The sister doesn't have to have an accent.

~Amy

Maybe Kate is his sister, after all. ;)

I did think it was Diane at the door at first. It'd be like Star Wars all over again! There have been a lot of references to it on the show... ;)