Kate Austen is one of the main protagonists of Lost, and thus his family is central to the series and its stories.

Family membersEdit

Immediate familyEdit

• Kate Austen - A fugitive on the run for killing her father who was caught in Australia and taken back to Los Angeles, but the plane she was on crashed.
• Wayne Janssen - Kate's father (who she believed to be her stepfather) and she killed him.
• Sam Austen - Kate's stepfather who she believed to be her father.
• Kevin Callis - Kate's estranged husband who she married under the alias of "Monica".

Extended familyEdit

• Aaron Littleton - Claire Littleton's son, whom Kate cared for, for 3 years when Claire went missing.
• Mr. Callis - Kate's former father in law.
• Suzanne Callis - Kate's former father in law.
• Kevin's brothers - Kate's three unnamed, former brothers-in-law.

OthersEdit

• Jack Shephard - Kate's ex-fiance who she met on The Island.
• James Ford - Kate's past romance who she met on The Island.

Note: Jack's family, Claire's family and Sawyer's family intertwine with Kate's.

v • d • e Kate Austen Portrayed by Evangeline Lilly, Emily Rae Argenti and Skye McCole Bartusiak Centric episodes "Tabula Rasa" • "Whatever the Case May Be" • "Born to Run" • "What Kate Did" • "I Do" • "Left Behind" • "Eggtown" • "The Little Prince" • "Whatever Happened, Happened" • "What Kate Does" Shared and non-centric flashes "Pilot, Part 2" • "Exodus, Part 1" • "There's No Place Like Home, Part 1" • "There's No Place Like Home, Part 2" • "There's No Place Like Home, Part 3" • "The Incident, Part 1 • "LA X, Part 1" • "LA X, Part 2" • "The End" Flashback characters Adam • Sam Austen • Baseball Hat • Connor Brennan • Rachel Brennan • Tom Brennan • Kevin Callis • Mr. Callis • Suzanne Callis • Customer • Duncan • Federal agent • Kate's horse • Mark Hutton • Jacob • Diane Janssen • Wayne Janssen • Sayid Jarrah • Jason • Johnny • Sun-Hwa Kwon • Benjamin Linus • Aaron Littleton • Carole Littleton • Man • Manager • Edward Mars • Michelle • Minister • Ray Mullen • Dan Norton • Nurse • Cassidy Phillips • Clementine Phillips • Sam • Sanjay • Jack Shephard • Six Foot Five • Mr. Springer • Sweet young woman • Ticket agent • Traner • Trucker • Scott Wheeler Flash-forward characters Arthur Galzethron • Bearded man • Co-pilot • Karen Decker • Melissa Dunbrook • Diane Janssen • Dan Norton • Dorpema • Duncan Forrester • Sayid Jarrah • Sun-Hwa Kwon • Aaron Littleton • Claire Littleton • Woo-Jung Paik • Mrs. Paik • Pearson • Pilot • Carmen Reyes • David Reyes • Hugo "Hurley" Reyes • Jack Shephard • Margo Shephard • Sutherland • Veronica Flash-sideways characters Admitting nurse • Leslie Arzt • Lindsey Baskum • Mr. Baskum • Ana Lucia Cortez • James "Sawyer" Ford • Ethan Goodspeed • Sayid Jarrah • Claire Littleton • Margaret • Edward Mars • Mechanic • Detective Rasmussen • Hugo Reyes • Jack Shephard • Ryan Millner • Taxi driver • Officer Westly • Woman in bathroom Items Halliburton case • Mugshot • Safety deposit box • Time capsule • Toy airplane • Kate and Tom's tape • Map Other Family • Relationships