We don't have a biography for Arnold yet. Hang in there, or go ahead and contribute one.
Appearances
Hey Arnold!
Main cast, played by Phillip Van Dyke
- Episode 2x01: Save The Tree / New Teacher (Sep 21, 1997)
- Episode 2x02: Helga's Love Potion / Gerald's Secret (Sep 28, 1997)
- Episode 2x03: The Big Scoop / Harold's Kitty (Oct 5, 1997)
- Episode 2x04: Longest Monday / Eugene's Pet (Oct 12, 1996)
- Episode 2x05: Monkey Business / Big Caesar (Oct 19, 1997)
- Episode 2x06: Ransom / Ms. Perfect (Oct 26, 1997)
- Episode 2x07: Arnold Saves Sid / Hookey (Nov 2, 1997)
- Episode 2x08: Freeze Frame / Phoebe Cheats (Nov 9, 1997)
- Episode 2x09: Mud Bowl / Gerald Moves Out (Nov 16, 1997)
- Episode 2x10: The High Life / Best Friends (Nov 23, 1997)
- Episode 2x11: Arnold's Halloween (Oct 27, 1997)
- Episode 2x12: Steely Phil / Quantity Time (Nov 30, 1997)
- Episode 2x13: Eating Contest / Rhonda's Glasses (Dec 7, 1997)
- Episode 2x17: Eugene Goes Bad / What's Opera, Arnold? (Jan 4, 1998)
- Episode 3x01: Helga Blabs It All / Harold the Butcher (Aug 31, 1998)
- Episode 3x02: Dangerous Lumber / Mr. Hyunh Goes Country (Sep 2, 1998)
- Episode 3x03: Casa Paradiso / Gerald's Tonsils (Sep 7, 1998)
- Episode 3x04: Arnold's Room / Helga vs. Big Patty (Sep 9, 1998)
- Episode 3x05: Stinky Goes Hollywood / Olga Gets Engaged (Sep 16, 1998)
- Episode 3x06: Curly Snaps / Pre-Teen Scream (Sep 23, 1998)
- Episode 3x07: Grandpa's Birthday / Road Trip (Sep 30, 1998)
- Episode 3x08: Sid's Revenge / Roller Coaster (Oct 7, 1998)
- Episode 3x09: The Aptitude Test / Oskar Gets a Job (Oct 14, 1998)
- Episode 3x10: Arnold Betrays Iggy / Helga and the Nanny (Oct 19, 1998)
- Episode 3x11: Career Day / Hey Harold! (Oct 21, 1998)
- Episode 3x12: Best Man / Cool Party (Nov 2, 1998)
- Episode 3x13: Arnold & Lila / Grand Prix (Nov 4, 1998)
- Episode 3x14: Arnold's Thanksgiving (Nov 18, 1998)
- Episode 3x15: Helga's Show / The Flood (Nov 25, 1998)
- Episode 3x16: Phoebe Takes the Fall / The Pig War (Dec 7, 1998)
- Episode 3x18: Crabby Author / Rich Kid (Dec 28, 1998)
- Episode 3x19: Girl Trouble / School Dance (Jan 4, 1999)
- Episode 3x20: School Play (Mar 8, 1999)
- Episode 5x06: Parents Day (Apr 12, 2000)