Lighthouse Mouse is a Warner Brothers Merrie Melodies animated cartoon featuring Sylvester the Cat, Hippety Hopper, a lightkeeper who speaks with a pronounced Scottish brogue, a loquacious parrot named Polly, and a very restless and mischievous mouse. First presented in 1955, it was written by Sid Marcus and directed by Robert McKimson, with voice characterizations provided by Mel Blanc.