Martha Blackburn

Martha is one of the teenage girls stranded after a plane crash on a deserted island, and she is the gentlest of the group by far — soft-spoken, quick to comfort others, and fiercely loyal to her best friend Toni. She'd rather keep the peace than win an argument, though the island tests that instinct fast.

Jenna Clause plays Martha's kindness as strength rather than naivety, which keeps her from ever feeling like the group's designated softie. The show uses her calm as a pressure gauge for everyone else's fraying nerves, and Clause makes her stillness read as its own kind of resilience, quietly compelling to watch.