| "Obsession" | |
|---|---|
| Star Trek: The Original Series episode | |
| Episode no. | Season 2 Episode 13 |
| Directed by | Ralph Senensky |
| Written by | Art Wallace |
| Featured music | Sol Kaplan |
| Cinematography by | Jerry Finnerman |
| Production code | 047 |
| Original air date | December 15, 1967 |
| Guest appearances | |
| |
"Obsession" is the thirteenth episode of the second season of the American science fiction television series Star Trek. Written by Art Wallace and directed by Ralph Senensky, it was originally broadcast on December 15, 1967.
In the episode, Captain Kirk becomes obsessed with killing a deadly cloud-like entity. Eleven years prior, Kirk felt he had an opportunity to kill the creature when it attacked his crew.
Ensign Garrovick would later reappear in the Star Trek: Prodigy episode "All the World's a Stage."