WhenLostwas first in development,Michael Keaton was cast as Jack.

This burden probably wouldve fallen to Kate.

Shes arguably the second-most important character after Jack and the second-best fit to lead the group.

Lost Poster

But this wouldvemade Kate a much less interesting character.

Kate had to spend the entire first season earning the trust of her fellow survivors.

Shannon’s death in Lost caused a lot more problems than it should have.

Jack looking shocked while standing in the jungle in Lost.

via ABC Studios

Ranging from audience disappointment, to underdevelopment of new characters.

Collage of Jack from Lost crying and one of him looking off to the side

Lost is a mystery drama series created for TV that follows a group of survivors of a plane crash and tells its story between the past, present, and future via flashbacks. When Oceanic Airlines Flight 815 crashes and lands on a mysterious island in the pacific ocean, the castaways discover their new temporary home may have a mind of its own, as strange supernatural events keep them locked to the island. From an unknown black smoke creature to dangerous islanders, the passengers must work together to survive the island’s seemingly deadly intentions.

Evangeline Lilly as Kate in the jungle on Lost, with a haunted expression on her face

Matthew Fox as Jack at the crash site in Lost

Three characters from lost scowling at the camera

Headshot Of Evangeline Lilly In The UK Gala Screening of

Headshot Of Naveen Andrews In The 12th Annual SAG Awards

Lost