List of The New Adventures of Susie Feeble characters is Pikachufreak's fan-fiction thing to make. These are the following characters from the Marilyn spin-off entitled: The New Adventures of Susie Feeble, which ran from September 6, 2003 to February 23, 2008.
- Susie Feeble is the main protagonist of the spin-off and the daughter of the Feeble Family. She is known for loving her doll Ally and her teddy bear Mr Bun Buns. She has long reddish brown hair and black eyes. Her main outfit is composed of: a red short sleeved dress, white socks and black shoes. She is voiced by Stephanie Morgenstern. At her age, she is 8 years old.
- Jennifer Feeble is Susie's very mean older sister and the daughter of the Feeble Family. She is a skeptical and rebellious girl who loves tormenting Susie everyday. She has reddish brown hair tied in a ponytail and black eyes. Her main outfit is composed of: a purple long sleeved shirt, black skirt, black boots. She is voiced by Minae Noji (the voice of Brittany Wong). At her age, she is 17 years old.
- Rebecca Feeble is the mother of Susie and Jennifer and the wife of Harold Feeble. She's a loving mother who always keeps a look out on her two daughters. She has long reddish brown hair and black eyes and has blue heart earrings on her ears. Her main outfit is composed of: a pink short sleeved shirt, blue skirt, tan pantyhose and white high heels. She is voiced by Kelly Sheridan (who is also the voice of Nikki Yanagisawa from Cardcaptors, Diana Lombard from Martin Mystery and Wanda Maximoff from X-Men Evolution). At her age, she is 51 years old.
- Harold Feeble is the father of Susie and Jennifer and the husband of Rebecca. He is always keeping his office jobs ready when he is at work and when he is at home, he cares for Susie and Jennifer. He has short reddish brown hair and black eyes. His main outfit is composed of: a blue long sleeved shirt, blue jeans and white sneakers. He is voiced by Greg Cipes (who is also the voice of Brandon Roberts from The Dork Diaries, Beast Boy from Teen Titans, Kevin Levin from the Ben 10 series, Jake from SciGirls and Iggy Koopa from The Adventures of The Koopalings). At his age, he is 51 years old.
- Nicole Feeble is the grandmother of Susie and the mother of Rebecca. She is an old lady who cares for her granddaughters and knows the right way to do. She has long reddish brown hair and black eyes and has glasses on. Her main outfit is composed of: a green long sleeved shirt, pink skirt and white shoes. She is voiced by Andrea Baker (who is also the voice of Clover Anderson of the Totally Spies). At her age, she is 72 years old.