Gretchen is an employee of the B.o.T.T., although her job seems to revolve around assisting Mr. Block in handling the field agents rather than working on the field herself. She's had only a single appearance.
She is voiced by Eileen Galindo.
Gretchen has short brown hair and dark eyes. She wears a pair of thin framed glasses and desaturated red lipstick that matches her triangular earrings.
Her uniform, much like Mr. Blocks in theme and color-scheme, is a futuristic black outfit with gray sides and red sleeves. She wears a matching belt with a gold buckle, alongside a pair of black gloves.
Much like her monotonous tone of speech, her indifferent expression seems to reflect the overall lack of interest she has in her job.
She doesn't seem to have any motivation to work, even in face of Mr. Block's annoyance when he scolded her for failing to do her job. This is seen in the episode School Dance when she forgets to deliver a map and some wooden stakes to Cavendish and Dakota in time for their mission. Instead, upon being reminded, she uses time travel to deliver them the day before. Her sarcastic, monotone statement afterward makes clear her lack of regard for her job.