Season 1[]
Jack confronts Kate...
...about the lies she's told regarding her criminal past.
- Kate lies to Jack about not knowing the Marshal, telling Jack that he was only sitting next to her on the plane. ("Pilot, Part 1")
- Kate lies to Jack about her criminal past ("Tabula Rasa")
- Kate lies to Ray about being from Canada. ("Tabula Rasa")
- Kate lies to Jack about why she wants the Marshal’s case. ("Whatever the Case May Be")
- Kate lies to Sawyer about wanting the Marshal’s case. ("Whatever the Case May Be")
- Kate attempts to lie about her criminal past to the camp. ("Born to Run")
Season 2[]
- Kate lies to Jack about feeling fine while taking care of Sawyer. She's obviously not fine. ("What Kate Did")
Season 3[]
- Kate lies to Pickett about being in love with Sawyer, which she only says so that Pickett would stop hurting him. ("Every Man for Himself")
- Kate lies to Kevin about her name (Monica) and who she really is. ("I Do")
- Kate lies to Sawyer about being jealous at seeing Jack and Juliet eating dinner. ("Catch-22")
- Kate lies to Sawyer about not being able to sleep in his tent. ("The Brig")
Season 4[]
You know she hates lying to Jack. It's obvious.
- She cons and lies to Jack into thinking she’s going to take the survivors back to the beach, and instead steals his walkie and heads off on her own for Naomi’s trail ("The Beginning of the End")
- She lies to Minkowski about Naomi’s death. ("The Beginning of the End")
- Kate is telling everyone that Aaron is her “son” ("Eggtown")
- She and Sawyer lie and con Locke so she can talk to Miles about what the Freighters know about her criminal past. ("Eggtown")
- Kate lies to Jack about her day-to-day activities. She calls them “errands”, but she’s actually doing a favor for Sawyer. ("Something Nice Back Home")
- She and the Others con Keamy’s crew by telling them that she’s being pursued by Richard and the others. ("There's No Place Like Home, Part 2 and 3")
Season 5[]
- Kate tells Aaron that they’re going on “vacation”. ("Because You Left")
- Kate initiates the lie that she is Aaron’s biological mother ("The Little Prince")
- Kate tries to tell Jack that nothing’s going on while she’s staking out Norton.("The Little Prince")
- Kate tries to lie to Roger about where his son, Ben, is located.