Knuckles the Echidna is a sixteen-year old red echidna from the Sonic series and is the guardian of the Master Emerald on Angel Island. He competed against Mario and others in Olympic events in Mario & Sonic at the Olympic Games. In this game, Knuckles acts as a power-type character, meaning he excels at games that require brute strength, such as Hammer Throw or Javelin Throw. He is also the fastest of the Power characters. In Mario & Sonic at the Olympic Games, he was voiced by Dan Green, who also voiced Vector the Crocodile in that game. He is currently voiced by Travis Willingham.