Monique

Monique, often called Mo, is Arthur's cousin. She appears in Arthur's Cousin Catastrophe at the Read Family Reunion. She has been mean to Arthur at past reunions such as spinning him on the lawn sprinkler, doing judo on him, and dressing him up as a baby. However, at the reunion Arthur's Cousin Catastrophe, she is much nicer to him. After seeing Arthur play piano at past reunions, she decided to learn how to play. She also reveals to Arthur that he's her favorite relative and that the only reason she comes to the reunion is to play with him, especially on the piano.

Appearance
Mo is depiected with a tan complexion, auburn shoulder-length hair and parted bangs, and wears a white shirt with the red R + R on the front, a bluish-gray jacket with front pockets, bluish-gray pants, and black sneakers with white accents. From the past reunions: she wore her hair in pigtails and straight-down bangs and was wearing a bright green shirt with buttons, bluish-gray shorts, white socks with bright green loops, and pale-red sneakers when spinning Arthur on a lawn sprinkler; her hair was shoulder-length and straight-down bangs, and she was wearing a white martial arts uniform with a yellow belt when doing judo on Arthur; and her hair was slightly longer than at her shoulders, and was wearing a yellow shirt and purple overalls when she dressed Arthur as a baby. After those three reunions, her voice has grown somewhat deeper.

Trivia

 * In Go to Your Room, D.W. and D.W.'s Perfect Wish, Arthur and D.W. referred to Lucy as their cousin instead of their aunt, but Mo is actually the oldest of Arthur and D.W.'s cousins, and she's middle school-aged.