Madi Griffin

Madi is a minor character in Season Four. She is a young Nightblood that met Clarke Griffin sometime after Praimfaya. She is portrayed by Imogen Tear and debuted in Praimfaya.

Early Life
Madi was born a Nightblood to unknown parents who mostly likely kept her special status a secret as they didn't send her to Polis once she was old enough to train as the next Commander. She was presumably orphaned as the second Praimfaya plagued the Earth at some point she met Clarke.

Throughout the Series
In 'Praimfaya', Madi is asleep in the Rover, and is later woken up by Clarke. Upon being wakened up she expects to finally meet Clarke's friends from The Ark, but is confused when she sees the Eligius Corporation ship fly in instead. Clarke tells her that it's not her friends and to run back to the rover to load the guns.

Physical Appearance
Madi has pale skin, braided light brown hair and green eyes. She is seen wearing a beanie and grounder clothing. Madi has almost the same height as Clarke's.

Clarke Griffin
Madi and Clarke have a figurative mother-daughter relationship.

Notes and Trivia

 * Madi met Clarke one year after the second Praimfaya.
 * In the show, it was hinted by Jason Rothenberg that Madi was Clarke's reason to live after Praimfaya.
 * Madi is Clarke's foster daughter.
 * It is unknown which clan she came from.