Mr. Pebbles

Mr. Pebbles was the first cat launched into space.

Appearances
Mr. Pebbles is mentioned in Fallout 4 on posters scattered throughout the world, and appears as the legendary version of the "Persian" cat that can be obtained.

Behind the scenes
This is possibly a reference to Laika the first dog sent to space by the U.S.S.R. in 1957.

Mr. Pebbles Mr. Pebbles