
William Farmer (November 14, 1952, Pratt, Kansas, USA) is an American voice actor and comedian. He has performed the voice of the Disney character Goofy since 1987, and is also the current voice of Pluto and Horace Horsecollar.
In 1987, Farmer had a small part as reporter Justin Ballard-Watkins in the film RoboCop.
His very first voice over audition was for Goofy. When he auditioned for the voice, he studied the way the original actor Pinto Colvig performed as Goofy in the classic cartoons. He studied the hilarious laugh and the distinctive "gawrsh". He inherited the voice of Goofy (and also Pluto) around the same time Tony Anselmo inherited Donald Duck and Russi Taylor inherited Minnie Mouse.
He originated the voice of Horace Horsecollar in Disney's version of The Prince and the Pauper and has played him ever since as well. Farmer also performed additional voices on The New Adventures of Mighty Mouse (1987) and Astro Boy (2004).
Other significant characters he has played include Yosemite Sam, Sylvester and Foghorn Leghorn in the movie Space Jam (1996). He has also done several guest voices, both on TV, including The Grim Adventures of Billy & Mandy and in video games, including the Destroy All Humans! series, Namco's Tales of Symphonia, where he voiced Governor-General Dorr, in Square Enix's Kingdom Hearts series reprising the role of Goofy, Detective Date in the SEGA game Yakuza, Captain Wedgewood and Frill Lizard in Ty the Tasmanian Tiger, many voices on EverQuest II, Cletus Samson, Floyd Sanders, Jeff Meyers and Ryan LaRosa in the video game Dead Rising and Sam and others in the cult classic adventure game Sam & Max Hit the Road.