Personality
Monsieur Yellow is a rowdy,and yet easily-tempered villain. Yellow has an evil dog known as Villain Puppy,he's loyal to him but not to the Bubble Guppies. Yellow likes to tease people and physically hurt them. He's often mistaken as a good guy.
Looks
Monsieur Yellow has peach skin,green eyes,Nonny's yellow hair,and a yellow tail.