- "We should never try to deny the beast - the animal within us."
- ―Doctor George Waggner
|Continuity:||Howling film series|
|Known relatives:||Eddie Quist |
T.C. Quist 
Bill Neill 
Marsha Quist is a fictional werewolf and a key antagonist featured in The Howling film series. Played by actress Elisabeth Brooks, she appeared in the first installment in the series, The Howling in 1981.
Marsha Quist was a werewolf and a nymphomaniac who lived at the getaway community known as the Colony in the hills of Northern California in the early 1980s. She lived in a small two-story cabin with her brothers Eddie and T.C.. Like everyone else who lived at the colony, Eddie and T.C. were also werewolves. A confessed naturist, Marsha was the most elemental of the Quist siblings and she often found herself at odds with Colony found Doctor George Waggner. Waggner tried to use his psychological know-how to domesticate werewolves, providing them with the means to fit in and live with normal human society. All of these were notions that Marsha found abhorrent.
In 1981, news broadcaster Karen White and her husband, Bill Neill came to the Colony so that Karen could recover from a confrontation with a serial killer (who turned out to be Marsha's brother, Eddie). Bill met Marsha on their first night at the colony where he indicated that he was looking for his wife, to which Marsha responded, "Why?"
A few nights later, Bill Neill and T.C. were out hunting when Bill shot a rabbit. At T.C.'s urging, he brought it to Marsha so that she could cook it for him. Marsha had little interest in the rabbit and instead forced herself onto Bill, kissing him. Bill pushed her away, but Marsha's appetites were not to be denied.
That evening, Bill was attacked and bitten by a werewolf (possibly Marsha). On the night of the full moon, he went out into the forests where he met with Marsha who seduced him. As the two made love by a bonfire, they transformed into werewolves. As they transform and have sex at the same time, Marsha leaves her mark on the transforming Bill by scratching him. They finish transforming together when they orgasm together and howl.
Karen eventually learned what had happened and confronted Marsha. Marsha proudly exclaimed "He's one of us, now".
Before long, Karen and her co-worker Chris Halloran learned the truth about the Colony and its werewolf residents. Chris succeeded in locking many of them inside of a barn then setting the building on fire. Marsha was able to escape the conflagration.
She was later seen at a local eatery ordering a hamburger – rare.
- The character of Marsha Quist was created by director Joe Dante and screenwriter John Sayles based on concepts originally developed by author Gary Brandner.
- Marsha's last name is revealed when Chris Halloran uncovers the files from George Waggner's office.