Sam Mackenzie

Samantha "Sam" Mackenzie is navigator and cartographer from Ships of the Northern Fleet. She is cute, charming, and kind, and is able to diffuse any situation with humor.

She is the narrator and protagonist of the standalone novellas "Maps of the Lost Skies," in which she describes the many various sky charts and measurements used by the air fleets, and "A New Night's Sky."

Relationships
Sam served alongside Neil Barnabas in the Royal Guard, and it was there they forged their lifelong friendship. After mistaking Neil's name as "Barnaby" in their first meeting, Sam refused to ever call him by his proper name. In the book series, Sam and Barnaby's relationship is more similar to siblings than the "will-they-won't-they" plotline of the TV series.

It is implied that Benny was in love with Sam, though most fans agree Adelaide and Sam had much more chemistry.

BOOK 7
They did Sam dirty. She didn't deserve that.

"A New Night's Sky"
Sam did something controversial to defend herself -- a point of much division among the SOTNF fandom.

TV SERIES
Episode 2: Sam and Estelle had a highly suggestive, shiver-inducing interaction that hints at Sam's bisexuality, as set up in the novels.