- Star Trek: The Motion Picture
- Star Trek II: The Wrath of Khan
- Star Trek III: The Search for Spock
- Star Trek IV: The Voyage Home
- Star Trek V: The Final Frontier
- Star Trek VI: The Undiscovered Country
- Star Trek Generations
Member of the Maquis contingent that joined the U.S.S. Voyager crew in 2371. Jonas betrayed Starfleet secrets, and allied himself with Seska and the Nistrim Kazon, before dying during a sabotage attempt the following year.