- Bratty Half-Pint
- A Child Shall Lead Them: A teenager as a mayor. Who would have thought about that?
- Expy: To Mayor Phlegmming from the film, though unlike Phlegmming, he's a lot more competent and not as selfish.
- Fake Ultimate Hero: Constantly takes credit for Ozzy and Drix's captures of dangerous viruses. The opening sequence lampshades this.
- Hidden Heart of Gold: He trusts Ozzy and Drix to keep Hector healthy, in spite of budding heads with them frequently.
- Jerkass: Certainly, but nowhere near Phlegmming's level.
- Pointy-Haired Boss
- Ungrateful Bastard
- Youngest Child Wins
- Expy: To Thrax from the film.
- Karmic Death: Having killed by the spleen while Ozzy escaped.
- One-Winged Angel
- Starter Villain: He's the debut villain of the series.
- Big Bad: The closest thing to one.
- The Bad Guy Wins: Although he fails to become the new mayor of Hector, he successfully smashes Spryman.
- Bitch in Sheep's Clothing: Maria mentions that he's a sweet guy. Think again.
- Four Eyes, Zero Soul
- Meaningful Name: Sylvian Fisher = Sylvian Fissure.
- The Rival: To Spryman
- Villain with Good Publicity
- Voiced by: Charlie Adler