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Johnny Test is an animated television series about the adventures of the eponymous Johnny Test, an 11-year-old boy.
- Johnny Test (voiced by James Arnold Taylor)
- Dukey (voiced by Louis Chirillo in Seasons 1-4, Trevor Devall in Seasons 5-6)
- Susan Test (voiced by Maryke Hendrikse)
- Mary Test (voiced by Brittney Wilson in Seasons 1 and 5, Ashleigh Ball in Seasons 2-4 and 6)