Marianne Dashwood is an unseen Wellie and obsessed fan of serial killer Foggy Jack in the Lightbearer DLC. A note from her can be found in one of the Avalon Hotel's rooms. She came to the Nick Lightbearer Convention in hopes of meeting him.
In her note she fantasies that Foggy Jack take her into his arms, rub his cleaver knife on her cheek and tell her that he will never hurt her, because she's special. The One. Her note ends with her planning to walk outside past midnight in hopes of crossing paths.
It's unclear if she came into connect with him, but if she did it's likely she has been murdered.
- Her name is a reference to fictional protagonist of the same name from Jane Austen's 1811 novel Sense and Sensibility. The character Marianne Dashwood who embodies "Sensibility" of the title, opposed to her elder sister Elinor Dashwood who is "Sense".