Warning: Some minor spoilers??
Mary Posa: The titular Henchgirl, Mary is the lazy but well-intentioned small-time criminal whose exploits you are currently reading.
Coco Oon: Mary’s rival at work, Coco is super mean!
Tina Caro: Mary’s idealistic roommate, who possesses the power to create carrots.
Sue Tanaka: Mary’s other roommate, who is a scientist.
Fred Stumbley: Mary’s friend/catering coworker, who is also the crimefighter Mannequin! He has the power to turn into a mannequin.
Photo-Girl/Paige Posa: Mary’s sister, who is successful and has the power to stop time.
Flame Girl/El Romancero: Mary’s legendary superhero parents. Boo! Parents suck!!
Monsieur Butterfly: The leader of the Butterfly Gang.
Mr. Great Guy/Greg Gains: A rich guy/superhero who is allegedly always foiling Monsieur B’s plans.
Palawan Birdwing: A very acrobatic orphan who works for the Butterfly Gang.
Chris Salis: Butterfly Gang member. Is he a cyborg? Or does he just wear that weird thing on his head for fun? Who knows.
Consuelo: A girl from Venezuela who works as a caterer and as a maid to Greg Gains, but also fights crime under the name LA MUCAMA!
Abuelita (also Consuelo): Consuelo’s grandmother.
Larry Va: Larry works for the BF Gang, primarily as a chauffeur. Just the worst.
Katie Pillar: Who really cares