- 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
Species with a large merchant fleet. Captain Archer and the crew of the Enterprise NX-01 encountered these aliens during their mission to the Delphic Expanse. Two Osaarian ships had entered the Expanse looking for new trade routes. One was destroyed; the other resorted to piracy. The Osaarians kept their stolen goods in a massive sphere surrounded by a cloaking field.