The Secrets

Jack's father was an alcoholic
Revealed to viewers

Jack took over an operation for his father who was inebriated at the time and had messed it up. The patient ended up dying and Jack accused Christian of drinking at lunch time.

Dr. Shepard    Who?... Oh, thank god I have you and some anonymous nurse to rescue me.
Jack    She told me that your hands were shaking.
Dr. Shepard    My hands were not. . .
Jack    You cut her hepatic artery.
Dr. Shepard    She was in a car crash, Jack. Her insides were a mess.
Jack    You made a mistake.
Dr. Shepard    They called me. I. . .
Jack    I don't care whether they called you. You made a mistake.
Dr. Shepard    Are you lecturing me? You tell me, if you were upstairs, and I was in a restaurant having lunch, then why did they call me?
Jack    How many drinks did you have at lunch, Dad?

Jack turned his father in to the Hospital Review Board
Revealed to Viewers

Christian asked Jack to sign a paper explaining how the patient died but when it got to the Hospital Review Board, Jack ended up telling the truth about what took place and that his father had been under the influence of alcohol.

Jack    I need to revise my statement. I didn't come into the O.R. until well into the procedure.
Dr. Shepard    Jack?
Jack    I was warned by one of the nurses that my father was operating under the influence.
Dr. Shepard    Jack. This is not. . .
Jack    By the time I got there it was clear that my father was not only impaired, but that he had also severed the patient's hepatic artery. Which in my professional opinion, caused the crisis which led to her death.

The Revelations

Michael was estranged from Walt
Revealed to Hurley
Told by: Walt

Without thinking, Walt revealed to Hurley that Michael wasn't the father in his life growing up and that he had another person he called "dad".

Walt    My dad said I was the luckiest person he ever knew.
Hurley    Really?
Walt    Not Michael, Brian. My other dad. Yeah, um. . . (he rolls again and wins). Yes! Yes! C'mon, one more game, double or nothing.

The Whispers
Revealed to Sawyer
Told by: Sayid

Sawyer learns Sayid is back in camp and seeks him out to pay him back for torturing him, but instead he hears Sayid's story about Danielle and the strange noises in the jungle.

Sawyer    Oh, she's never seen them, but she knows they're there.
Sayid    If you believe her.
Sawyer    Do you?
Sayid    Maybe. Maybe not. But on my way back I heard something in the jungle surrounding me.
Sawyer    Something like what?
Sayid    Have you got something to say to me Sawyer, or are you going to continue asking me questions you know I don't have the answers to?