Twink

"Princess Peach! Make a wish! A wish for everyone... you, me, Mario... and everybody in the Mushroom Kingdom!"

- Twink

Twink is a Star Kid in Paper Mario, who helps Princess Peach in her time of need when she gets kidnapped by King Bowser. He frequently gives Mario and his partners information on where the Star Spirits are being held captive. He was born in Starborn Valley immediately before Bowser stole the Star Rod. Had he been born any later, he would have been trapped there and unable to assist Peach throughout the course of the game.

When Peach was first captured, she wished for help, and Twink arrived. Since he's so young, he isn't able to grant any big wishes; he can, however, assist Peach in eavesdropping around her castle. When Mario and his partners fight Bowser, Twink decides to take on Kammy Koopa. When Twink is fighting, he can only use Dash, while Peach increases his Attack Power with her wishes (expressed as Focus). Once Kammy is defeated, Mario is given the upgraded version of the Star Beam, the Peach Beam. It summons the seven Star Spirits, who, with Twink's help, dispel Bowser's Star Rod's effects, making it possible for Mario to defeat the Koopa King.

At the end of the game, Twink bids farewell to the princess, telling her he's going to make people's wishes come true. It seems that Twink wants to tell the Princess something further, but he stops himself and rises up to Star Haven.

Trivia

 * Twink's name is a shortened version the word "twinkle".
 * Twink's role is fulfilled by TEC in Paper Mario: The Thousand-Year Door.