Johnny Test (played by James Arnold Taylor) is a protagonist in Johnny Test.
Crafty, mischievous, and hyperactive 11-year-old boy who frequently causes trouble by tampering with his sisters' inventions. Despite avoiding schoolwork, he proves clever, often saving the day or tricking his sisters, and consistently shows compassion by attempting to fix his mistakes. Susan Test (played by Maryke Hendrikse) is a protagonist in Johnny Test.
13-year-old genius twin sister who uses Johnny as a lab rat for her advanced attic experiments. She harbors a deep obsession with impressing her neighbor Gil, though her attempts to attract his attention consistently fail. Mary Test (played by Ashleigh Ball) appears in Johnny Test.
13-year-old genius twin sister and Susan's twin. Frequently conducts experiments on Johnny in their high-tech attic lab. Shares Susan's deep love and obsession for their neighbor Gil, often competing to get his attention. The General / Bling-Bling Boy (played by Lee Tockar) appears in Johnny Test.
Main nemesis of Johnny and Dukey, and rival of the Test sisters. Harbors an unrequited crush on Susan. Also serves as a General from Area 51.1, occasionally interacting with or recruiting the kids. Hugh Test (played by Ian James Corlett) appears in Johnny Test.
Johnny's father and an over-the-top househusband. He is highly obsessive-compulsive, with his two biggest passions being thorough cleaning and cooking meatloaf. Dukey (played by Trevor Devall) appears in Johnny Test.
Lila Test (played by Kathleen Barr) appears in Johnny Test.
Johnny's mother and a super busy businesswoman. She forms part of the eccentric Test family dynamic alongside her husband Hugh. Mr. White / Bumper (played by Scott McNeil) appears in Johnny Test.
Acts as both a school bully who constantly picks on Johnny and a federal agent from the SSGA. As an agent, he is close friends with the kids, often recruiting them or helping them out of trouble.
Johnny Test (2005) — Character Map & Story Timeline
Johnny Test (2005) interactive character relationship network and AI-powered story timeline. Explore the connections, alliances, and conflicts between characters across the narrative arc.
AI Narrative Summary
Overall narrative architecture across all 6 seasons
Character Network — 9 Characters
Johnny Test (James Arnold Taylor) — protagonist Crafty, mischievous, and hyperactive 11-year-old boy who frequently causes trouble by tampering with his sisters' invent...
Susan Test (Maryke Hendrikse) — protagonist 13-year-old genius twin sister who uses Johnny as a lab rat for her advanced attic experiments. She harbors a deep obses...
Mary Test (Ashleigh Ball) 13-year-old genius twin sister and Susan's twin. Frequently conducts experiments on Johnny in their high-tech attic lab....
The General / Bling-Bling Boy (Lee Tockar) Main nemesis of Johnny and Dukey, and rival of the Test sisters. Harbors an unrequited crush on Susan. Also serves as a...
Hugh Test (Ian James Corlett) Johnny's father and an over-the-top househusband. He is highly obsessive-compulsive, with his two biggest passions being...
Dukey (Trevor Devall)
Lila Test (Kathleen Barr) Johnny's mother and a super busy businesswoman. She forms part of the eccentric Test family dynamic alongside her husban...
Mr. White / Bumper (Scott McNeil) Acts as both a school bully who constantly picks on Johnny and a federal agent from the SSGA. As an agent, he is close f...
Mr. Black (Bill Mondy) A federal agent from the SSGA working alongside Mr. White. He maintains a close friendship with the kids, frequently ass...
