Alex

Alex  is a third grader in Mr. Ratburn's class.

Physical appearance
Alex is normally seen wearing a tan collared sweater, long brown jeans, and blue and white sneakers. In the episode Buster's Dino Dilemma Alex wore a white shirt that had purple on it, purple shorts with green on it, long green socks, and red and white sneakers.

In the the summer Alex wears a light tanned shirt with a white, collar, brown shorts, white socks, and blue and white shoes. He wears green pajamas as seen in the episode The World of Tomorrow. He also wears a blue swim trunks as seen in the episode Desk Wars.

In the Winter Alex wears long brown pants, a green sweater, a cream colored scarf, cream colored mittens, and dark brown shoes. In the Fall (or Autumn) he wears a blue collared jacket with a yellow circle on it.

For formal occasions he swears a white shirt with a brown tie, a tanned shirt over his white shirt, long brown dress pant, and black dress shoes. Another type of formal clothes he wears is a green collared shirt, a red and black striped tie, a vest over his green shirt, dark green dress pants, and brown dress shoes.

Relationships
Being in Mr. Ratburn's class, we can assume he has some sort of relationship with the main characters. He is often seen with George and Jenna. He is most of the time seen with Maria and in a few cases talking to her in the background. His family has never been seen before so far in the series.

He also has been seen talking or hanging out with other minor characters in the background including some of the fourth Graders. There is a possibility he is friends with Muffy because the intro of "The Election" portrays him at her side at the presidential inauguration.and in one episode he is seen hanging out with Buster.

Friends

 * Maria Pappas: They were seen reading a book together in Binky Goes Nuts and whispering to her in Vomitrocious.
 * George Lundgren: Both of them were seen playing basketball in April 9th.
 * Jenna Morgan

Trivia

 * He is midfielder for Lakewood Elementary Soccer Team.
 * On the Student of the Month chart, Alex is second last (with Binky being last) which may be a hint that he has a 'trouble-making' personality.
 * In "Team Trouble", he is seen throwing a crumbled paper at Jessica in the lunchroom.
 * His name first appeared in the episode, "The Scare-Your-Pants-Off Club" on a list that Francine was holding, but he was already off-screen, so the name could not be matched to him until the Student-of-the-Month chart in "MacFrensky".
 * His name was also on the list in "Arthur's Number Nightmare"
 * His Glenbrook lookalike, 3rd Grade Male Rat (Number 3), is only recognizable as his lookalike because of the hair.
 * He is seen in the intro for the show along with Otis, Patrick, Brian and Luke followed by the rest of the main/minor characters.
 * Alex appears to be camera shy as shown in the episode "And Now Let's Talk to Some Kids." He was seen quickly getting up after the cameraman pointed the camera in his direction.
 * In "Desert Island Dish", he brought what appeared to be a bag of oranges for the assignment. This food may be a favorite of his.
 * In "The Boy with His Head in the Clouds", Alex is seen writing down a word problem in math class with great confidence. This could mean that math is a subject that he excels in.
 * In "Arthur's Toy Trouble", he is shown to have a helpful personality when he was helping an elderly woman cross the street. He was wearing a scout uniform.
 * He first talks in "Buster's Dino Dilemma."

Appearances
While most of his appearances are brief he has had some roles in the series. His roles in some episodes are in bold.

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Specials

 * Arthur's Perfect Christmas
 * Arthur - It's Only Rock 'n' Roll
 * D.W. and the Beastly Birthday

Arthur
Season 1 Season 2 Season 3 Season 4 Season 5 Season 6 Season 7 Season 8 Season 9 Season 10 Season 11 Season 12 Season 13 Season 14 Season 15 Season 18 Season 19 Season 20
 * 10101 Arthur's Eyes
 * 10201 Arthur and the Real Mr. Ratburn
 * 10202 Arthur's Spelling Trubble
 * 10302 Buster's Dino Dilemma
 * 10401 D.W.'s Imaginary Friend
 * 10402 Arthur's Lost Library Book
 * 10601 Locked in the Library!
 * 10702 Buster Makes the Grade
 * 11001 Arthur's Birthday
 * 11002 Francine Frensky, Superstar
 * 11101 Arthur's Baby
 * 11201 Arthur Writes a Story
 * 11302 Buster's New Friend
 * 11602 D.W. Flips (Fantasy)
 * 11701 Meek for a Week
 * 11702 Arthur, World's Greatest Gleeper
 * 12001 Arthur's Almost Boring Day
 * 12202 Team Trouble
 * 12302 Misfortune Teller
 * 12601 My Dad, the Garbage Man
 * 12702 Arthur's Substitute Teacher Trouble
 * 12801 I'm a Poet
 * 12802 The Scare-Your-Pants-Off Club
 * 12901 My Club Rules
 * 12902 Stolen Bike
 * 20102 Draw!
 * 20202 Arthur's Lucky Pencil
 * 20302 Buster and the Daredevils
 * 20501 Arthur's Underwear
 * 20801 Arthur vs. the Piano
 * 20802 The Big Blow-Up
 * 21102 Buster Hits the Books
 * 21201 Arthur and the Square Dance
 * 21301 Water and the Brain
 * 21502 Fern's Slumber Party
 * 21601 Love Notes for Muffy
 * 21602 D.W. Blows the Whistle
 * 21702 Arthur the Loser
 * 21801 Arthur vs. the Very Mean Crossing Guard
 * 21802 D.W.'s Very Bad Mood
 * 22001 How the Cookie Crumbles
 * 22002 Sue Ellen's Little Sister
 * 30102 The Ballad of Buster Baxter
 * 30301 Arthur Goes Crosswire
 * 30302 Sue Ellen and the Brainasaurous
 * 30402 And Now Let's Talk to Some Kids
 * 30502 Revenge of the Chip
 * 30602 Meet Binky
 * 30701 Arthur Rides the Bandwagon
 * 30702 Dad's Dessert Dilemma
 * 31502 The Long, Dull Winter
 * 40202 Muffy's New Best Friend
 * 40302 The Fright Stuff
 * 40502 The Rat Who Came to Dinner
 * 50102 Double Dare
 * 50201 Kids are from Earth, Parents are from Pluto
 * 50301 It's a No-Brainer
 * 50402 The Cave
 * 50501 The Lousy Week
 * 50502 You Are Arthur
 * 50601 The Election
 * 50802 Bitzi's Beau
 * 603a Prunella's Special Edition
 * 701a Cast Away
 * 702a Francine's Split Decision
 * 703b Don't Ask Muffy
 * 705 Elwood City Turns 100!
 * 707a D.W.'s Time Trouble
 * 707b Buster's Amish Mismatch
 * 710 April 9th
 * 801b Bitzi's Break-up
 * 803a Arthur's Snow Biz
 * 804a Fernkenstein's Monster
 * 804b D.W., Dancing Queen
 * 805a Vomitrocious
 * 805b Sue Ellen Chickens Out
 * 807a Desk Wars
 * 807b Desperately Seeking Stanley
 * 808a Muffy's Art Attack
 * 901a Castles in the Sky
 * 901b Tipping the Scales
 * 902a Francine's Big Top Trouble
 * 902b George Blows His Top
 * 903a Arthur Weighs In
 * 903b The Law of the Jungle Gym
 * 905b "All Worked Up"
 * 907b A is for Angry
 * 908a The "A" Team
 * 1001 Happy Anniversary
 * 1002a The Squirrels
 * 1003a Desert Island Dish
 * 1007a Unfinished
 * 1008a Binky vs. Binky
 * 1009a Do You Speak George?
 * 1010a *What's Cooking?
 * 1010b Buster's Special Delivery
 * 1101b Germophobia
 * 1104b Brain's Shocking Secret
 * 1106a The Making of Arthur
 * 1106b Dancing Fools
 * 1107a Hic or Treat
 * 1107b Mr. Alwaysright
 * 1108a Francine's Pilfered Paper
 * 1108b Buster Gets Real
 * 1110 Big Brother Binky
 * 120101 Is That Kosher?
 * 120501 The Chronicles of Buster
 * 120902 Do You Believe in Magic?
 * 121001 The Perfect Game
 * 1301  The Great MacGrady
 * 130402 MacFrensky
 * 130801 Fernlets by Fern
 * 130902 The Pride of Lakewood
 * 140101 The Wheel Deal
 * 140102 The Buster Report
 * 140201 The Agent of Change
 * 140301 Nicked by a Name
 * 140302 The Play's the Thing
 * 140702 Muffy and the Big Bad Blog
 * 140802 All the Rage
 * 141002 The Long Road Home
 * 150201 I Wanna Hold Your Hand
 * 150301 Buster's Secret Admirer
 * 150401 Cents-less
 * 150402 Buster the Lounge Lizard
 * 150501 To Eat or Not to Eat
 * 150502 S.W.E.A.T.
 * 150701 Prunella the Packrat
 * 150702 What's in a Name?
 * 150901 Buster's Garden of Grief
 * 150902 Through the Looking Glasses
 * 151001 The Butler Did... What?
 * 151002 The Trouble with Trophies
 * 180401 "Best Wishes"
 * 190301 Arthur's Toy Trouble
 * 200101 Buster's Second Chance
 * 200202 Cereal

Postcards from Buster

 * Finding Family in Chennai

Books
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 * D.W. Rides Again! (First identified as Alex)
 * Arthur Makes the Team
 * Buster's Dino Dilemma