Character of Hey Arnold!
Principal Johnathan Wartz
Occupation	School principal
Family
Best friends
Relationships
Voiced by	David Wohl

Principal Johnathan Wartz is a fictional character in the Hey Arnold! TV Series.

He is P.S. 118's principal. He's is a pretty good Karaoke singer, and is a strict, yet usually well-intentioned principal.

While often characterized as bumbling and barely-competent, or at other times childlike but benevolent, Principal Wartz has also been shown to have certain paranoid tendencies, often believing his students are out to get him in some way, or himself plotting to spy on or otherwise entrap them in wrongdoing. These, among other mannerisms, seems to be a subtle reference to U.S. President Richard Nixon, who also spoke in a way similar to Wartz.

He has lost one toe in an accident ("Hookey").

Appears inEdit

• A Day in the Life of a Classroom
• April Fool's Day
• Arnold's Halloween
• Back to School
• Curly Snaps
• Eugene Goes Bad
• False Alarm (first appearance)
• Full Moon
• Hall Monitor
• Helga On The Couch
• Helga's Show
• Hookey
• New Teacher
• Phoebe Cheats
• Phoebe's Little Problem
• Polishing Rhonda
• Pre-Teen Scream
• Principal Simmons
• Rhonda's Glasses
• Sid's Revenge
• Suspended
• Teachers' Strike
• The Big Scoop
• The Flood