Elizabeth Mitchell as <EM>Lost</EM>'s Juliet Burke Elizabeth Mitchell as Lost's Juliet Burke
Our favorite castaways thus far have been on the island a few months, but for Lost

fans, it's been more than 260 days since Jack's super-freaky flash-forward. As the Jan. 31 season premiere (finally) draws closer, TVGuide.com is offering daily profiles — "refreshers," if you will — of the key players in ABC's island-based odyssey.

Juliet, by the "Numbers": Before traveling to the island, Juliet Burke (played by Elizabeth Mitchell) lived with her sister Rachel, who was suffering from the effects of chemotherapy, and worked as a fertility doctor at a research lab in Miami. Juliet provided medicine to Rachel that, against all odds, was able to help her become pregnant. (Though she miscarried, Rachel later gave birth to a son named Julian.) Juliet's successful impregnation of a male field mouse led to a job offer from Dr. Richard Alpert and Ethan Rom, who introduced themselves as representatives of Mittelos Bioscience, based outside of Portland, Oregon. Reluctant to leave her ailing sister, Juliet agreed to work with them for just six months. At the airport, Juliet drank tranquilizer-dosed orange juice and woke up not in Portland but on the island, where she has remained for more than three years. Juliet's favorite book is Carrie by Stephen King and she has a fondness for the song "Downtown" by Petula Clark.

Things Got Interesting When...: Juliet asked Jack, via video, to kill Ben during the operation on his tumor. While this seemed to prove that she was turning against the Others, she has previously plotted with Ben to gain Jack's trust and insinuate herself to the castaways.

'Tis Better to Have Loved and Gotten Lost?: While living in Miami, Juliet divorced her husband Dr. Edmund Burke. On the island, she was intimate with Goodwin and, according to Tom, has "history" with Ben.

Six Degrees of Serialization: Juliet and Ethan passed in the hallway of her apartment building. Sun, Kate and Juliet's sister Rachel have all used Widmore pregnancy tests. (Widmore is the last name of Desmond's love interest, Penelope.) The bus that struck and killed Juliet's ex-husband Edmond Burke bore an advertisement for Apollo candy, which Kate was seen eating and which was also advertised during Desmond's football match.

Juliet's Season 3 Story: As Jack was being held captive in the Hydra Station, Juliet became his main contact with the Others. She initially had to earn his trust so he would agree to perform surgery on Ben. Learning quickly that serving grilled cheese sandwiches with frill picks was not the way to win him over, she used other, more subtle measures of deception, including leaving the door to the monitoring room open so Jack could watch Kate and Sawyer having sex. In the midst of surgery, at Jack's command, she allowed Kate and Sawyer to escape and return to their island in exchange for Jack saving Ben's life. Nonetheless, Juliet was put on trial for this action by the Others and was sentenced to death by Isabel. With his own life spared, Ben instead overruled that decision and ordered that she be marked with a scar on her lower back and released. After this, Juliet was left behind as the Others made their way to another campsite. She has lied, killed and performed what look like martial-arts maneuvers to gain people's trust, but can anyone really trust Juliet? Jack seems to do so implicitly, returning with her to the beach, where her toughest task was convincing the castaways that she's one of them now. Though she has said aloud that she hates Ben, we learned that she is still working for him when we found out that Claire's bleeding was caused by an activated implant and Sun's ultrasound results were recorded. The truth is revealed to Jack when Juliet confesses her duplicity and then Sawyer finds the tape regarding the kidnapping of Sun and other women. Trying to stay one step ahead, a trap is set to blow up the Others as Juliet heads for the radio tower with the group.

How Juliet Has Us Puzzled: When she first met with Richard, Juliet casually mentioned that the only way she could leave Miami would be if her ex-husband Edmund were hit by a bus. To her amazement, this is exactly what happens. Was this scenario an act of fate, or is there some island magic at hand? On the island, it's uncertain whether Juliet is conning Ben and has her own agenda for inserting herself among the Flight 815 survivors.

Our Wild Prediction: Juliet makes it off the island and gives up fertility research when she realizes that she actually doesn't like children. With a newfound love of action, she begins a career as a martial-arts instructor.

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