Johnny Test (voiced by James Arnold Taylor) is a troublesome, narcissistic and widely disrespectful 11 year old (in 2008) boy who is the son of Hugh, Chaffeur of Lila Test, chaffeur of Susan and Mary and anti-hero of the show. Because he has Susan and Mary by his side, he can live any kids dream, only to find that some dreams aren't worth living. He is usually seen with his partner-in-crime, Dukey, his genetically altered mutt. He also gives Johnny Coupons to his sisters for helping him in his daily problems. When redeemed, he does their tests for free.
Personality: Grumpy, unintellegent, safe, strict, disrespectful, serious, caring, wise, irrresponisble, vain, arrogant, sarcastic.
Color of Eyes: Blue
Age: 15-16: 2013
Hair Color: Blonde with Scarlet highlights
Attire: Navy Blue collared jacket, Black T shirt with a radioactive sign, olive drab pants and black sneakers.
Relatives: Lila Test (Chaffeur), Susan and Mary Test (Chaffeurs), Hugh Test (father), Dukey (pet)
Allies: Dukey, Bling-Bling Boy (sometimes), Gil Nexdor, Jillian Vegan, Mr. Black, Mr. White, Sissy Blakely (sometimes), Mickey Mouse, Minnie Mouse, Goofy, Donald Duck, Daisy Duck, Huey, Dewey, Louie, Uncle Scrooge, Professor Ludwig Von Drake, Jiminy Cricket, Mac, Bloo, Wilt, Eduardo, Coco, Frankie, Mr. Herriman, Madame Foster, Billy, Mandy, Irwin, The Grim Reaper, Mindy, Pudin, Spreg, Lazlo, Raj, Clam, Samson, Edward, Chip, Skip, Scoutmaster Lumpus, Scout Slinkman, Adam Lyon, Jake Spidermonkey, Andy, Rodney,
Enemies: Pete, Mortimer Mouse, Susan Test, Mary Test, General Skarr, Terrence, Duchess, Berry, Bumper Randalls, Sissy Blakey (occasionally), Bling-Bling Boy (sometimes), Dark Vegan, Wacko, Zizrar the Mole King, Mr. Mittens, The Tickler