The Cap'n

The Cap'n is a character that is mentioned in Super Mario 64. It is implied that the character is actually a Captain that once lived in Jolly Roger Bay with his ship until his ship sank into the deep bottom.

When Mario attempts to get the second Power Star in Jolly Roger Bay, Mario has to swim down into the ocean and get into the hole in the ocean to get into the dangerous cave. When Mario attempts to cross all over the way into the very end of the cave, he mentions that anyone that enters the cave will obtain certain trouble. Mario curiously passes the obstacles as he will find four Treasure Chests at the end of the cave. When Mario reads a Sign near to the four Treasure Chests; The Cap'n was mentioned in the sign as he mentions that he hid the Power Star in one of the treasures. He also mentions that to get it, Mario must open the Treasure Chests in the right order; but The Cap'n will not tell. The player can figure out how to get the Power Star by opening the Treasure Chests in order by size.

Trivia

 * As the word "cap'n" is simply short for "captain", it has been used in other Mario games; an example of this is Mario & Luigi: Superstar Saga, where the captain of the S.S. Chuckola is referred to as "Cap'n" in one line of dialogue.