Blockhead is the main character of the Newgrounds web series of the same name, created and voiced by The-Swain. He is best known for his extreme lack of intelligence and his tendency to cause destruction.
Unlike the other people living on Earth, Blockhead is a different-looking humanoid always wearing brown shoes, blue jeans and a red shirt. Blockhead has bright yellow skin and a round head, which all resemble a smiley face. His tongue is somewhat longer than a normal human being's tongue, which allows him to use it in order to grab stuff far away.
Extremely dimwitted, undereducated and somewhat (though unintentional) destructive (though well-meaning), Blockhead constantly ignores his conscience (much to the conscience's irritation) and unintentionally tends to wreak havoc on his surroundings and other people. As a result, he hardly ever has to pay the consequences of his actions. Blockhead also has a number of weird quirks, such as wielding radishes for weapons, celebrating "Ghostmas" instead of Halloween (which he hates) and constantly making use of a pair of tongs for a variety of purposes.
Blockhead is shown in the gallery of characters at the top of the page in the Flash Portal.