Mary Test

Marinette "Mary" Louise Test is a 13-year old super genius who was also the older sister of Johnny and also the daughter of Hugh and Lila. 
She was voiced by Brittney Wilson also voices Sandy and currently, Ashleigh Ball also voices Blythe Baxter, Applejack, and Rainbow Dash. In the 2021 version of Johnny Test, she is voiced by Emily Tennant.
==Personality==
Mary has been shown to be more empathetic and sympathetic than her sister. Like her sister, Mary harbors a deep love bordering on obsession for the Test's next-door neighbor Gil Nexdor. Like her sister, she attends school at the Mega Institute of Technology. Mary is prone to believing in the less scientific and more science-fictional, which, although it receives scorn from her twin, often proves to be right in the end. Mary seems to be more level-headed than her twin Susan, and Mary tends to be more conservative, as she speaks her mind much less than Susan. Though Mary wears pants, she seem to be more "Girly" than her twin Susan. This is revealed when she decides to make a normal dress in the episode Princess Johnny.
==Appearance==
Mary has a yellow shirt with a light blue moon on it, long curly red hair, greenish blue eyes, crescent glasses and a moon-shaped barrette. She often wears baggy blue jeans and sneakers with a light gray lab coat. She sometimes wears a bright pink bikini and her disco outfit was a bright purple tank top with pink shorts and bright gray shoes.
Category:Female
Category:Doctors and Scientists
Category:Inventors
Category:Genius
Category:Cartoon Heroes
Category:TV Show Heroes
Category:Twins/Clones
Category:Siblings
Category:Virtually Resourceful
Category:Teenagers
Category:Obsessed
Category:Creators
Category:In Love
Category:Stalkers
Category:Superheroes
Category:Sophisticated
Category:Jerks
Category:Cowards
Category:Control Freaks
Category:Thrill-Seekers
Category:Mutated
Category:Mascots
Category:Vengeful
Category:Rivals
Category:Anti-Heroes
Category:Science Fantasy Heroes