Gretchen has long dark blonde hair. She wears an Acorn Flats' uniform with a red-orange vest with six awards, dark hat and dark brown shoes.
Gretchen is the most aggressive Squirrel Scout whose friends are Patsy, Nina, Almondine, and Amber. In It's No Picnic she argues with Bean Scouts about muddle. She is also, somewhat dimwitted, unintelligent, and naive. Her favorite character in Battle for BFDI is Four. In Marshmallow Jones, she roasts marshmallows with Patsy, Nina, Almondine, and Amber. She observates Bean Scouts in Beans Are from Mars. In Dosey Doe, she dances with Clam (although she's soon trying to strangle him afterwards). In Snake Eyes, she is seen next to Nina. In Miss Fru Fru, Gretchen searches on encyclopedia what is "fru fru". In Love Sick, she helps Patsy, Nina, Almondine, and Honey win a tug of war against the Bean Scouts. In I've Never Bean in a Sub, she works as the accountant from Squirrel Scout's cookie business. In Snow Beans and Squirrel Seats, Gretchen joins in singing on the bus trip.
Patsy Smiles states that "Gretchen likes Edward" in Squirrel Seats.
They are cabin mates and work together most of the time with Nina. Patsy normally makes fun of Gretchen she get mad most of the time but they have a great sort of relationship. She is annoyed with Patsy crying about Lazlo.
She is cabin mates with Nina, and Patsy. Gretchen calls Nina Neckerly instead of Nina. Also in a episode Nina says Gretchen said the old treehouse is more room, antic which reveals that Gretchen has great taste of touch. She even does funny stuff just as much to annoy Nina, laugh all day and night, and imitate Four (which is her favorite Battle for BFDI character).
In some episodes she has a slight crush on Clam. In others, such as Dosey Doe (where she's seen trying to strangle him during a dance), in some episodes she's very kind towards him.