- 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
Captained by the "outrageous" Okona, this small ship's cargo holds were empty when it encountered the Enterprise-D in 2365. With its guidance system malfunctioning, Enterprise came to the Erstwhile's aid, towing it via tractor beam and allowing its captain to board.
A Class-9 vessel and interplanetary cargo ship, the Erstwhile made runs between the Madena planets and is armed with lasers only.