Unforgettable (Star Trek: Voyager)
| "Unforgettable" | |
|---|---|
| Star Trek: Voyager episode | |
| Episode no. | Season 4 Episode 22 |
| Directed by | Andrew J. Robinson |
| Written by | Greg Elliot Michael Perricone |
| Featured music | Jay Chattaway |
| Production code | 190 |
| Original air date | April 22, 1998 |
| Guest appearances | |
| |
"Unforgettable" is the 90th episode of the science fiction television series Star Trek: Voyager, the 22nd episode of the fourth season. It was directed by Star Trek: Deep Space Nine recurring guest actor Andrew J. Robinson who portrayed the Cardassian character Elim Garak.
The episode was broadcast on the United Paramount Network (UPN) on April 22, 1998. The USS Voyager is visited by a mysterious alien woman, Kellin (played by guest star Virginia Madsen).
The episode depicts a Bussard ramjet, a real-world proposed technology designed to scoop up fuel for a spacecraft's engines. In this episode the engine is said to take in deuterium.