Alexandra Cavill

	Female
	5'4
	Alive
	Alex Allie (by Melanie) Engineer Cavill (by Joseph Wilford)
	Engineer on Big Alice (formerly) Engineer on the Pirate train (formerly)
	Melanie Cavill (mother) Unnamed grandparents †
	Emilia Bennett Knox Andre Layton Bess Till Josie Wellstead
	Miss Audrey LJ Folger (former frenemy) Sykes (former coworker) Joseph Wilford (former employer)
	Rowan Blanchard Grace Sunar (child)
	Snowpiercer
	994 Cars Long

Alexandra "Alex" Cavill is a character on TNT's Snowpiercer. She is portrayed by Rowan Blanchard, while her younger counterpart is portrayed by Grace Sunar respectively.

She is a self-assured girl. She is wise beyond her years, and has mysterious connections to the history of Snowpiercer. She is the daughter of Melanie Cavill, and was believed dead for seven years. She acted as the Engineer on Big Alice, until the train reconnected with Snowpiercer and Wilford eventually seized power over both trains.

Throughout the series

History

Alexandra was born to Melanie Cavill ten years prior to the Freeze. When the Freeze occurred, she boarded Big Alice instead of Snowpiercer, leading Melanie to believe that Alexandra had died in the Freeze. In reality, Alex was saved by Mr. Wilford although her grandparents had refused to leave and did in fact actually die in the Freeze. When Wilford carried out his cull, he woke up Alex (her friend Shilo as well) and saved her from the cars that were separated.

Believed to be Dead

Alexandra is mentioned numerous times by Melanie, as she remembers her daughter. After Melanie loses control of Snowpiercer, she turns to Miss Audrey in the Nightcar wherein she reveals she feels the most guilty for leaving Alexandra behind when Snowpiercer departed.

When Snowpiercer is docked by Big Alice, Alexandra appear as a diplomat for Mr. Wilford threatening Snowpiercer and demanding to see Melanie Cavill, her mother; this is a shocking reveal for both Layton and Ruth who believe Alexandra to be dead.

Mr. Wilford's engineer

Alex presents Snowpiercer with a list of supplies demanded by Mr. Wilford before he will start the trains moving again. She is later reunited with Melanie who is shocked to see that her daughter is in fact still alive, but Alex acts coldly towards her. Alex eventually visits Melanie in the brig and explains that Wilford had saved her life, but Melanie's parents didn't want to leave and that they had thus died in the Freeze. The two bond for a moment before Alex asks about the snow that Melanie had collected and leaves in a huff at her mother's answer.

Later, Melanie is called to the Engine after Layton's failed invasion where to her surprise and pride, she discovers that Alex is the train's Engineer. Wilford orders Alex to bring the trains to a stop and decides to disconnect from Snowpiercer, let the passengers die and then come back for the train. Alex is clearly hesitant at performing such a murderous act and Melanie attempts to convince her daughter not to go through with it. Alex eventually decides to follow Wilford's orders only to have the connecting mechanism explode. Melanie explains to the two how she had planted a bomb on it and reveals that Wilford had overbuilt the mechanism, something that Melanie had warned him about before and the two trains are now permanently linked. Alex is left impressed with her mother's ingenuity, laughing and acknowledging that Melanie is right, and that Wilford has no choice but to start again. After some hesitation, Wilford gives Alex the order to start the trains moving again.

Appearances

Season One 994 Cars Long Season Two The Time of Two Engines Smolder to Life A Great Odyssey A Single Trade Keep Hope Alive Many Miles From Snowpiercer Our Answer for Everything The Eternal Engineer The Show Must Go On Into the White

Season Three The Tortoise and the Hare The Last to Go The First Blow Bound by One Track A New Life Born to Bleed Ouroboros Setting Itself Right A Beacon for Us All The Original Sinners

Trivia

• She held an elevated position aboard Big Alice, which could have been compared to the position held by Bennett Knox under Melanie.
• Alex displays some of the same habits as her mother: after being showed how to, she often feels the vibrations of the train. In addition, as noted by LJ Folger, she uses the same trick of calling the Engine and pretending to get the answers that she wants to trick those around her.
• In a confrontation in Into the White, Wilford claims he only took Alex with him on Big Alice, to use as a weapon against her mother Melanie Cavill, when they eventually would catch up with Snowpiercer again. However, he does appear to have some genuine care for her as seen in Bound by One Track.
• In Many Miles From Snowpiercer, Melanie states in a flashback of the boarding that Alex was 8. This would make her 15 in the present.
• According to Wilford in A Beacon for Us All, Alex's skills as an engineer could eclipse both Wilford and Melanie.

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