what does the cat do in don't sleep with the fishes
Captain Whiskers is a cat in Don’t Sleep With The Fishes , and the game/community description suggests you can choose to save the cat during the survival run. In practice, the cat is one of the rescue priorities, and your choice affects the playthrough and ending details.
Quick scoop
The most specific public description I found says the game includes “even a cat named Captain Whiskers,” and that what you choose to save changes your run. Another public blurb describes the game as a sea-survival challenge where you grab supplies and make fast choices to escape the sinking ship.
What that means
So, the cat’s role is less about doing a scripted action and more about being one of the things you can rescue or lose. If you were asking for a single-line answer: the cat is a saveable companion/objective, not just background flavor.
Context
Public posts about the game also frame it as a horror/survival title with multiple outcomes, so the cat can influence which version of the story you end up with. The title’s “fishes” phrasing is just the game’s theme; it’s not literally about fish behavior.
TL;DR: Captain Whiskers is the cat you can save in Don’t Sleep With The Fishes , and your choice about him affects the outcome.