A
- Greg Abbey (as Yusei Fudo in Yu-Gi-Oh! 5D's, Tristan Taylor in Yu-Gi-Oh! after episode 11, and the 2003 Teenage Mutant Ninja Turtles as Raphael.)
- Don Adams (voice of Inspector Gadget, Tennessee Tuxedo in Tennessee Tuxedo and his Tales)
- Lou Albano (voice of Mario in The Super Mario Bros. Super Show!)
- James Alburger (voice actor, author of The Art of Voice Acting, VO coach, producer, Emmy-winning sound designer, created numerous character voices for commercials and entertainment projects)
- Charlie Adler (Buster Bunny on Tiny Toon Adventures, Ed and Bev Bighead on Rocko's Modern Life, I.R. Baboon on I Am Weasel, The Red Guy on Cow and Chicken and I Am Weasel, Starscream in live-action Transformers movies, Doctor Doom in The Super Hero Squad Show and Cobra Commander in the current G.I. Joe series.)
- Pamela Segall Adlon (Bobby Hill in King of the Hill)(Ashley Spinelli in Recess, Andrew Johnson "Andy" in Squirrel Boy)(Margaret "Moose" Person in Pepper Ann)
- Joe Alaskey (current voice of Bugs Bunny and other characters formerly voiced by Mel Blanc)
- Carlos Alazraqui (Rocko from Rocko's Modern Life, Denzel Crocker on The Fairly OddParents, Lazlo in Camp Lazlo, the Taco Bell chihuahua, Spyro in Spyro the Dragon)
- Sherry Alberoni (Alexandra Cabot on Josie and the Pussycats)
- Aaron Albertus (Mr. Bump and Mr. Quiet on The Mr. Men Show)
- Joan Alexander - (d) May 21, 2009(2009-05-21) (aged 94) - Radio's Lois Lane along with roles on Perry Mason and animated Superman in the 1940s and 1960s.
- Patrick Allen (Captain Star in TUGS)
- Tim Allen (Buzz Lightyear in the Toy Story trilogy)
- Wayne Allwine - (d) (May 18, 2009 aged:62 (voiced Mickey Mouse (1977–2009))
- Jack Angel (voice of Teddy in A.I, Astrotrain in Transformers,Nikki in Balto)
- Tony Anselmo (voice of Donald Duck (1985–present))
- Chris Anthony (narrator on Adventures in Odyssey)
- Nigel Anthony (voice of Big Mac, Hercules, Zebedee, Sea Rogue, Frank, and Fire Tug in TUGS)
- Sebastian Arcelus (as Rex Ancient in Dinosaur King)
- Billie Joe Armstrong (Face on the King of the Hill episode "The Man Who Shot Cane Skretteburg", himself on The Simpsons Movie)
- Ed Asner (Carl Fredricksen in Up)
- Harvey Atkin (King Koopa in the Mario Brothers cartoons)
- René Auberjonois (Chef Louis in The Little Mermaid)
- Eleanor Audley as Maleficent in Sleeping Beauty and Lady Tremaine in Cinderella.
- Christine Auten (Rika Noyomano in Air Gear)
- James Avery (Shredder in Teenage Mutant Ninja Turtles (1987 series) seasons 1-7.)
- Robert Axelrod (Lord Zedd, Finster, Lokar, and various monsters in Power Rangers; Wizardmon in the English dub of Digimon Adventure)
- Dan Aykroyd (The titular character in the 2010 film Yogi Bear)
- Greg Ayres (anime voice actor, notable roles include Chrono from Chrono Crusade Yukio "Koyuki" Tanaka from BECK: Mongolian Chop Squad, Kaoru Hitachiin from Ouran High School Host Club, Heihachi Hayashida in Samurai 7, Son Goku in Saiyuki and many others)
- Hank Azaria (Multiple characters on The Simpsons, including Apu, Moe and Hop as Carlos/Phil.)
- Jake T. Austin (Diego on Go Diego Go)
Read more about this topic: List Of Voice Actors