Holmes

 Holmes is a robot and the main antagonist of Game Show Island. He is mainly a cycloptic computer screen that smiles/frowns. He was created by Dr. Harold Langley, also known as 'The Inventor'.

Trivia

 * A five-cent coin on Game Show Island says "In Holmes we Trust. Five Cents", instead of the American coin saying, "In God we Trust."
 * Him winning the game show "Braniacs" may be a reference to the computer Watson that won the game show "Jeopardy"
 * Holmes bears a resemblance to Auto from the Disney Pixar's movie Wall-E, both physically and personality-wise.
 * His name is based off of the fictional detective Sherlock Holmes.
 * He might be based on HAL9000, another computer-like robot.