Toad

Toad is a recurring character and species in the Super Mario series. They are the citizens of the Mushroom Kingdom and faithful understudies of Princess Peach. They will often assist Mario on his adventures to stop the evil Bowser, although most of them show cowardice in the heat of danger.

In Super Mario 64, Bowser traps the Toads in the castle walls, and only a few Toads appear in the rooms to assist Mario. Three Toads will grant Mario a star for talking to them, having hidden them from Bowser's clutches.

Ally with Info
Main article: Ally with Info In Super Mario 64 DS, a Toad on the second floor tells the player to look for an "ally with info" within the Mirror Room. It's important to note that this is said with every character, including Wario who is unlocked within the Mirror Room, meaning that Toad isn't referring to Wario and it cannot be a simple translation error. There have been several theories as to this mysterious ally's identity, as well as reports of anomalous NPCs that fit the description of this ally with info.