6 Season
234 Episode
Johnny Test - Season 4 Episode 14 Johnny's Big Dumb Sisters
The twins' latest invention accidentally makes them dumb thanks to Johnny right before their scholarship interview.
- Year: 2014
- Country: Canada, United States of America
- Genre: Animation, Comedy, Kids
- Studio: Cartoon Network, Teletoon
- Keyword: dog, scientists, adventure
- Director: Scott Fellows
- Cast: James Arnold Taylor, Maryke Hendrikse, Ashleigh Ball, Lee Tockar, Ian James Corlett, Trevor Devall