Mathter and Fervent
- Episode aired Jun 17, 2007
- TV-G
- 21m
When Ron needs to interview a hero for a school assignment, he and Kim travel to Go City to see Hego and wind up in a confrontation with the Mathter, a mathematically minded villain.When Ron needs to interview a hero for a school assignment, he and Kim travel to Go City to see Hego and wind up in a confrontation with the Mathter, a mathematically minded villain.When Ron needs to interview a hero for a school assignment, he and Kim travel to Go City to see Hego and wind up in a confrontation with the Mathter, a mathematically minded villain.
Will Friedle
- Ron Stoppable
- (voice)
Nancy Cartwright
- Rufus
- (voice)
Tahj Mowry
- Wade Load
- (voice)
Elliott Gould
- Mr. Stoppable
- (voice)
Jess Harnell
- The Mayor
- (voice)
- …
Andrea Martin
- Mrs. Stoppable
- (voice)
Christopher McDonald
- Hego
- (voice)
J.K. Simmons
- Martin Smarty
- (voice)
Brian Stepanek
- Mathter
- (voice)
