Merrin was a Nightsister waiting on Dathomir to take her revenge in the video game Jedi: Fallen Order.
It will be a damn shame if Merrin doesn’t show up in future Star Wars stories. Her character, created for the game in her only appearance in Star Wars canon, was a highlight of a very satisfying game.
When Jedi Padawan Cal Kestis meets Merrin on Dathomir it’s revealed she is the last of the Nightsisters as the rest of her people were wiped out during the Clone Wars. Manipulated by fallen Jedi Taron Malicos, Merrin believes all Jedi to be her enemy. But Merrin and Cal’s story eventually takes them both off Dathomir.
Actress Tina Ivlev portrayed Merrin in Jedi: Fallen Order.
Here’s a montage of all of Merrin’s cut scenes in the game.