Helga G. Pataki/Appearances

• 24 Hours to Live
• A Day in the Life of a Classroom
• April Fool's Day
• Arnold (pilot episode)
• Arnold & Lila
• Arnold as Cupid (does not speak)
• Arnold Betrays Iggy
• Arnold Escapes From Church (claymation short)
• Arnold Visits Arnie
• Arnold's Christmas
• Arnold's Halloween
• Arnold's Hat
• Arnold's Room (does not speak)
• Arnold's Thanksgiving
• Arnold's Valentine
• Back to School (does not speak)
• Beaned
• Best Friends (does not speak)
• Best Man
• Big Bob's Crisis
• Big Caesar
• Big Sis
• Biosquare
• Buses, Bikes, and Subways
• Career Day
• Chocolate Boy (cameo)
• Coach Wittenberg
• Cool Jerk
• Cool Party
• Crabby Author
• Crush On Teacher
• Curly Snaps
• Curly's Girl
• Dangerous Lumber
• Das Subway
• Deconstructing Arnold
• Dinner for Four
• Downtown As Fruits
• Dino Checks Out (cameo)
• Eating Contest
• Egg Story
• Eugene's Bike
• Eugene's Birthday
• Eugene's Pet
• Eugene, Eugene!
• Eugene Goes Bad (does not speak)
• False Alarm
• Field Trip
• Friday the 13th (does not speak)
• Gerald's Game (does not speak)
• Gerald's Secret
• Gerald's Tonsils
• Ghost Bride
• Girl Trouble
• Grand Prix
• Grudge Match
• Hall Monitor
• Harold's Bar Mitzvah
• Haunted Train
• Heat
• Helga vs. Big Patty
• Helga and the Nanny
• Helga Blabs It All
• Helga on the Couch
• Helga Sleepwalks
• Helga's Boyfriend
• Helga's Locket
• Helga's Love Potion
• Helga's Makeover
• Helga's Masquerade
• Helga's Parrot
• Helga's Show
• Hey Arnold! The Jungle Movie
• Hey Arnold! The Movie
• Hey Harold!
• It Girl
• Longest Monday
• Love and Cheese
• Magic Show
• Married
• Monkey Business
• Monkeyman!
• Ms. Perfect
• Mudbowl
• Mugged (does not speak)
• New Bully on the Block
• New Teacher
• Olga Comes Home
• Olga Gets Engaged
• On the Lam (does not speak)
• Operation Ruthless
• Parents Day
• Part Time Friends
• Phoebe Breaks a Leg
• Phoebe Cheats
• Phoebe Skips
• Phoebe Takes the Fall
• Phoebe's Little Problem
• Pigeon Man
• Pre-Teen Scream
• Principal Simmons
• Quantity Time
• Rhonda Goes Broke
• Rhonda's Glasses
• Rich Kid
• Road Trip
• Roller Coaster
• Roughin' It
• Runaway Float
• Sally's Comet
• Save the Tree
• School Dance
• School Play
• Sid and Germs
• Sid's Revenge (does not speak)
• Sid the Vampire Slayer (cameo)
• Snow
• Spelling Bee
• Stinky Goes Hollywood
• Stinky's Pumpkin (does not speak)
• Student Teacher
• Summer Love
• Suspended (does not speak)
• Synchronized Swimming (does not speak)
• Teachers' Strike
• The Aptitude Test
• The Arnold Waltz (claymation short)
• The Baseball
• The Beeper Queen
• The Big Scoop
• The Flood
• The High Life
• The Journal
• The List (does not speak)
• The Little Pink Book
• The Pig War
• The Sewer King
• The Vacant Lot
• Timberly Loves Arnold (cameo)
• Weighing Harold (does not speak)
• Weird Cousin
• What's Opera, Arnold?
• Wheezin' Ed
• World Records