Joe Alaskey

Joseph "Joe" Alaskey (born on May 26th, 1949) is an American actor, voice-actor, and comedian, best known for his ability to successfully impersonate the voices of Warner Brothers cartoon characters. 

So far, he has voiced Bugs Bunny, Daffy Duck, Sylvester The Cat, Tweety Bird, Yosemite Sam in Who Framed Roger Rabbit?, Foghorn Leghorn, Pepe Le Pew in Tweety's High-Flying Adventure, Marvin The Martian (since 1990), Plucky Duck in Tiny Toon Adventures, and The Royal Tweetums and Sylth Vester in Loonatics Unleashed, and Henery Hawk.