Jess Q. Harnell (born December 23, 1963) is an American voice actor and singer, best known for voicing Wakko Warner on Animaniacs. Harnell has been the announcer for America's Funniest Home Videos since 1998.

Jess provides the voice of Russ in "The Blue And The Gray And The Brown" and Ben Stiller in "Skip Day" and fills in for Seth MacFarlane who was busy making his directorial debut with the live-action movie Ted in the role of Tim the Bear in select season three episodes. Jess also voices other characters such as Ben Roethlisberger.

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