Senators were individuals who represented the many planets of the Milky Way Galaxy in the galaxy's ruling Senate, on a moon of the planet Saturn in the Sol system named Iapetus. A known senator representing the planet Sesamos in this Senate was Milton Clash, who later rose to power to become the Supreme Chancellor before renaming the position "president."
- Puppet Saga: Episode III Afterwards (First mentioned, albeit indirectly)
- Puppet Saga: Episode IV The Fight Around Iapetus (Indirect mention only)
- Puppet Saga: Episode V The New Chancellor (First appearance) (First identified as Senator)
- Puppet Saga: Episode VI A Death In The Family
- Puppet Saga: Back to the Future (First appearance on Earth)