Tough Customers

We're not bullies. We're kids who have a hard time expressing our emotions in a constructive manner. The Tough Customers are a gang of bullies at Lakewood Elementary School, founded by Binky. In "Arthur's Big Hit," Binky decides to get rid of the club, but in later episodes the club is still there, most likely because of how poorly Binky planned a new, non-violent club. They hang out on the jungle gym (aka: The Tower of Pain), and also have an entire lunch table reserved for themselves. Some of the members are named after baby stuff and children's toys. Despite their tough image, many of them are good at ballet, as seen in "Revenge of the Chip."

Leader

 * Binky Barnes (also founder)

Other known members

 * Molly MacDonald (senior member)
 * Rattles (senior member)
 * Slink
 * Kieper
 * Billy
 * 4th Grade Male Dog
 * 4th Grade Female Cat
 * 4th Grade Male Rabbit
 * 4th Grade Female Aardvark

Briefly

 * George Lundgren ("The Boy with His Head in the Clouds")
 * Arthur Read ("Arthur, World's Greatest Gleeper")

Appearances
''Episodes with enough of them together to be recognized as the Tough Customers. Ones that specifically focus on them are bolded.''
 * Season 1
 * Arthur, World's Greatest Gleeper
 * Bully for Binky
 * Arthur Goes to Camp
 * Arthur Writes a Story
 * Arthur Accused!
 * Season 2
 * Buster and the Daredevils (Slink's debut)
 * Love Notes for Muffy
 * Arthur Meets Mister Rogers
 * Season 3
 * Revenge of the Chip
 * Season 4
 * Arthur's Big Hit
 * Season 6
 * Brother Can You Spare a Clarinet?
 * Season 7
 * Prunella Sees the Light (cameo)
 * Season 8
 * Thanks a Lot, Binky
 * D.W., Dancing Queen
 * Season 9
 * The Law of the Jungle Gym
 * Arthur Makes Waves
 * D.W. Beats All (cameo)
 * Season 14
 * The Play's the Thing
 * Arthur Unravels
 * D.W., Queen of the Comeback
 * Season 15
 * I Wanna Hold Your Hand
 * Season 16
 * Based on a True Story
 * Flippity Francine (cameo)
 * The Last Tough Customer (upcoming episode)