Mary Senicourt is a minor character in The Amazing World of Gumball. She is Nicole Watterson's mother. She and her husband Daniel made their debut in "The Choices."

Mary somewhat resembles her daughter, Nicole. She is a blue cat just like her, with a slim body and wide hips, but with a rounder face, pointier ears, smaller oval shaped eyes, longer whiskers, a longer tail, and a different mouth type. She only has five visible whiskers like her grandson Gumball. She is taller than both her husband and her daughter.

She wears a yellow-orange sleeveless turtleneck blouse, a long dark blue skirt with a brown belt having a white buckle, and brown heeled sandals.

In "The Parents," she is shown in the present with a more elderly appearance; her fur is a little paler, her whiskers are grey, and there are wrinkles under her eyes and on and around her mouth. She is voiced by Liza Ross