When Marneen was around 12 years old, the family moved from North Dakota to southern California, where her father worked as a service manager at Santa Monica Airport.

In 1972 she created and opened the first Simi Valley Parks and Recreations program in gymnastics for children and adults of all ages including the handicapped The same year she lost all the hearing in her left ear due to a throat infection.

Her college gymnastics career was cut short due to a fall off the balance beam during competition resulting in a serious injury to ligaments of her right ankle.

[4] During the summer of 1976, she was home from college in Ventura, California recovering from the ankle reconstruction surgery when she was discovered by stuntman Paul Stader (Cary Grant's double).

Some of the film and TV shows Fields has appeared in and the actresses she did stunts for are: Jane Seymour Battlestar Galactica, Priscilla Presley The Fall Guy, Shirley Jones Beyond the Poseidon Adventure, Michelle Phillips The Man with Bogart's Face, Morgan Fairchild Time Express, Belinda Montgomery The Man from Atlantis, Mary Crosby Dynasty, Samantha Doane The Gauntlet, Linda Purl Matlock, Natasha Richardson Patty Hearst, Karen Black Police Story: Confessions of a Lady Cop, Linda Hamilton Murder She Wrote, Melanie Griffith She's in the Army Now, Tovah Feldshuh Terror out of the Sky, Dee Wallace The Howling, Kim Cattrall The Hardy Boys/Nancy Drew Mysteries, Barbara Hershey From Here to Eternity, and Heather Menzies Logan's Run.

Fields was also cast in more stunt actress jobs by directors like Stanley Kramer The Runner Stumbles, Irwin Allen The Swarm, Peter Medak Otherworld, and James Fargo Scarecrow and Mrs. King.

In the mid-80s she became the first woman to come from the pure stunt arena to land the co-star role in the Arkoff International Production of Hellhole as the religious insanity victim who receives a chemical lobotomy.

Award in Music, the title song for the 2013 documentary, We Can Take Some of the Hurt Away produced by cinematographer Roydon Johnson, a charity film about poverty to help fund education situations for children in Indonesia.

[6] On August 5, 2018, Marneen won Best Single from the LANFA Nollywood Awards for her pop-rock-blues ballad about a tormented poet who commits suicide, "I'll Never Kiss His Lips Again" with the song produced by Steve Valenzuela on Kelly Clarkson's "Greatest Hits Volume One.