Luke

Luke is a fourth grader who made his first appearance in the episode "Arthur's Eyes". He may have been in Mr. Ratburn's class the previous year as shown in the episode "Tipping the Scales".

Luke is shown to be nice to the other kids at school. He is also seen playing on the Lakewood Soccer team numerous times. Once he finished his homework while walking out of the school.

Physical appearance
Luke is an aardvark with a beige complexion. He dresses similarly to Mr. Marco. He wears light blue jeans, a blue sky jacket with a yellow shirt underneath, and brown shoes.

When playing soccer, Luke wears blue shorts with a white line running down the left side, a black shirt, and blue-and-white sneakers. In winter, he wears a blue sweater, blue hat, and light-blue mittens.

Appearances

 * Specials
 * Arthur - It's Only Rock 'n' Roll
 * Season 1
 * Arthur's Eyes 10101
 * Francine's Bad Hair Day 10102
 * Arthur and the Real Mr. Ratburn 10201
 * Arthur's Spelling Trubble 10202
 * D.W.'s Imaginary Friend 10401
 * Arthur's Lost Library Book 10402
 * Arthur Accused! 10602
 * Francine Frensky, Superstar 11002
 * Arthur Writes a Story 11201
 * Arthur's Lost Dog 11202
 * Buster's New Friend 11302
 * Arthur and the True Francine 11402
 * Arthur, World's Greatest Gleeper 11702
 * Sue Ellen Moves In 12101
 * Team Trouble 12202
 * Bully for Binky 12301
 * Misfortune Teller 12302
 * Arthur's Substitute Teacher Trouble 12702
 * I'm a Poet 12801
 * The Scare-Your-Pants-Off Club 12802
 * My Club Rules 12901
 * Season 2
 * Draw! 20102
 * Arthur Makes a Movie 20401
 * Arthur's Underwear 20501
 * Arthur's TV-Free Week 20701
 * Night Fright 20702
 * Season 3
 * Meet Binky 30602
 * Arthur's Almost Live Not Real Music Festival 31102
 * Season 4
 * Arthur's Big Hit 40102
 * Muffy's New Best Friend 40202
 * Binky Barnes, Wingman 40701
 * Season 5
 * Double Dare 50102
 * Kids are from Earth, Parents are from Pluto 50201
 * Season 6
 * Best of the Nest 60102
 * Buster's Sweet Success 60202
 * Prunella's Special Edition 60301
 * Muffy's Soccer Shocker 60401
 * Citizen Frensky 60601
 * The Good Sport 60901
 * Season 7
 * Francine's Split Decision 70201
 * D.W.'s Time Trouble 70701
 * Season 8
 * Arthur's Snow Biz 80301
 * Bugged 80302
 * Vomitrocious 80501
 * Sue Ellen Chickens Out 80502
 * Season 9
 * Tipping the Scales 90102
 * Arthur Makes Waves (Buster's imagination) 90601
 * A is for Angry 90702
 * Binky Goes Nuts 91001
 * Season 10
 * World Girls 100902
 * Season 11
 * Phony Fern 110401
 * Hic or Treat 110701
 * Buster Gets Real 110802
 * Season 12
 * Is That Kosher? 120101
 * I Owe You One 120702
 * Do You Believe in Magic? 120902
 * Season 13
 * Arthur's Number Nightmare (Name on seating assignment) 130301
 * The Pride of Lakewood 130902
 * Season 14
 * Nicked by a Name 140301
 * The Play's the Thing (Picture only) 140302
 * Season 15
 * Fifteen 150101
 * Buster's Secret Admirer 150301
 * To Eat or Not to Eat 150501

Trivia

 * Luke spoke twice in the series, which took place during the episodes Francine's Bad Hair Day and Arthur Writes a Story.
 * Luke and Patrick were at one time seen in Mr. Ratburn's class.
 * In earlier seasons Luke was depicted as a third grader and was even in Mrs. Fink's class. In later seasons he has never been seen in Mrs. Fink's class and is now a fourth grader.
 * He is seen in the intro of the show along with several other kids including the main characters.
 * In the episode Team Trouble, he breaks the fourth wall by waving toward the viewers through the window in the cafeteria, while Buster and Arthur are talking to Francine.
 * The inside of his house was revealed during the episode Sue Ellen Moves In while he was talking to the other kids on the phone about Sue Ellen. It appears that he is talking on the phone via the living room as part of the frame for a picture is seen. The wall is also dark green colored.