James Arnold Taylor James Arnold Taylor
plays Johnny Test
Louis Chirillo Louis Chirillo
plays Dukey
Maryke Hendrikse Maryke Hendrikse
plays Susan Test
Ashleigh Ball Ashleigh Ball
plays Mary Test
Ian James Corlett Ian James Corlett
plays Dad
Kathleen Barr Kathleen Barr
plays Mom
Bill Mondy Bill Mondy
plays Mr. Black
Scott McNeil Scott McNeil
plays Mr. White

Writers

78 episodes, creator
18 episodes, episode "Johnny's Big Snow Job"
10 episodes, written by
Keith Wagner
10 episodes, writer
9 episodes, writer
Brad Birch
7 episodes, writer
5 episodes, writer
5 episodes, written by
Joshua Hamilton
4 episodes, writer
4 episodes, writer
3 episodes, writer
3 episodes, writer
Mike Yank
3 episodes, creator
Ron Holsey
2 episodes, written by
2 episodes, written by
2 episodes, story
Dan Serafin
2 episodes, writer
Nathan Knetchel
2 episodes, writer
2 episodes, writer
Denise Downer
2 episodes, written by

Directors

37 episodes
19 episodes
11 episodes
Joseph Sherman (V)
5 episodes
Matt Danner
1 episodes

Producers

101 episodes, executive producer
101 episodes, executive producer
Audrey Velichka
26 episodes, producer
Terry Rotsaert
26 episodes, supervising producer
19 episodes, producer
14 episodes, producer
13 episodes, executive producer
J.C. Cheng
13 episodes, associate producer
9 episodes, executive producer
Steven Comeau
8 episodes, producer: collideascope
8 episodes, producer
5 episodes, line producer
5 episodes, executive producer
Jennifer Picherack
3 episodes, producer
Lesley Saliwonchyk
3 episodes, associate producer
Aaron Simpson
1 episodes, producer
1 episodes, executive producer
John Vandervelde
1 episodes, executive producer