- Species: Alien
- Gender: Male
- Alignment: Evil
Zam and Zem are Nitros Oxide's cronies who race for him. Zam (voiced by Billy West) is a sort of alien dog, and Zem (voiced by Andre Sogliuzzo) is a chubby alien with an insatiable appetite and a burping habit.
- Thanks to Samno for the Zam picture and Crasharki for the Zem picture.