On a side note, it's odd how some actors haven't done as many animated films as others. Like, Will Smith hasn't been in an animated film since Shark Tale, and the only voice work his wife, Jada Pinkett Smith, has done are the Madagascar films. I guess some actors just enjoy doing animated movies better than others. Anyway, let's get started!
1) Will Ferrell
CHARACTERS SHOWN: Ted Shackelford from Curious George,Megamind from… Well, Megamind, and Lord Buisness from The LEGO Movie.
HE ALSO VOICED…: The Black Knight from the Family Guy episode “Mr. Saturday Knight”.
2) Bill Thompson
CHARACTERS SHOWN: Jock from Lady and the Tramp, Mr. Smee from Peter Pan, and the White Rabbit from Alice In Wonderland.
HE ALSO VOICED…: Uncle Waldo from The AristoCats and King Hubert from Sleeping Beauty. You might also recognize him as the voice of Hanna Barberra’s Touche Turtle.
3) Don Rickles
CHARACTERS SHOWN: Cornwall from Quest For Camelot and Mr. Potato Head from the Toy Story movies.
HE ALSO VOICED…: A frog in The Zookeeper.
4) Danny DeVito
CHARACTERS SHOWN: The Lorax in the 2012 adaptation and Philoctetes from Hercules.
HE ALSO VOICED…: Herb Powell from The Simpsons.
5) J. Pat O’Malley
CHARACTERS SHOWN: Colonel Hathi and Buzzie the Vulture in The Jungle Book, Otto the Blacksmith Dog from Robin Hood, and Jasper and the Colonel in One Hundred and One Dalmatians.
HE ALSO VOICED…: Cyril Proudbottom from The Adventures of Ichabod and Mr. Toad, the Walrus, the Carpenter, the Tweedles, and the Oysters from Alice In Wonderland, and quite a few characters in the animated segments from Mary Poppins.
6) Verna Felton
CHARACTERS SHOWN: Winifred from The Jungle Book, Flora from Sleeping Beauty, and the Fairy Godmother from Cinderella.
SHE ALSO VOICED…: The Queen of Hearts from Alice In Wonderland and Aunt Sarah from Lady and the Tramp.
7) Samuel L. Jackson
CHARACTERS SHOWN: Frozone from The Incredibles and Whiplash from Turbo.
HE ALSO VOICED…: Mace Windu from Star Wars: The Clone Wars (the movie).
8) Brendan Fraser
CHARACTERS SHOWN: Grayson the Squirrel from The Nut Job and Scorch Supernova from Escape From Planet Earth.
HE ALSO VOICED…: The Tasmanian Devil from Looney Tunes: BACK IN ACTION.
9) Sterling Holloway
CHARACTERS SHOWN: Winnie the Pooh, Kaa from The Jungle Book, and the Cheshire Cat from Alice In Wonderland.
HE ALSO VOICED…: Mr. Stork from Dumbo, Adult Flower from Bambi, and Roquefort from The AristoCats.
10) Tom Kenny
CHARACTERS SHOWN: SpongeBob SquarePants in The SpongeBob SquarePants Movie (obviously) and Rabbit in the 2011 Winnie the Pooh movie.
HE ALSO VOICED…: Eduardo from Foster’s Home For Imaginary Friends, Scoutmaster Lumpus and Slinkman from Camp Lazlo, Commander Peepers from Wander Over Yonder, and Pat the Hammer from Handy Manny. He also voiced Ham in the direct-to-video sequel for Space Chimps (I have no idea why).
11) Daveigh Chase
CHARACTERS SHOWN: Lilo from Lilo and Stitch and Chihiro from Spirited Away.
SHE ALSO VOICED…: Joyce and Tracy Mabini from Fillmore.
12) Patrick Warburton
CHARACTERS SHOWN: Kronk from The Emperor’s New Groove, the Wolf from the Hoodwinked movies, and Blag from The Wild.
HE ALSO VOICED…: Joe Swanson from Family Guy, Ian from Open Season (though he didn’t return for the sequels), a Greek Soldier from Mr. Peabody and Sherman, and Titan from Space Chimps.
13) Pat Carroll
CHARACTERS SHOWN: Kanta’s Grandmother from My Neighbor Toronto and (perhaps her most famous role) Ursula from The Little Mermaid.
SHE ALSO VOICED…: Grandma Arbuckle in a few of the animated Garfield TV specials.
14) James McAvory
CHARACTERS SHOWN: Arthur from Arthur Christmas and Gnomeo from Gnomeo and Juliet. Coincidentally, both movies were released the same year.
HE ALSO VOICED…: Those were his only two roles as a voice actor. Who knows, maybe Aardman will cast him in their next film?
15) Billy Crystal
CHARACTERS SHOWN: Mike Wazowski (my favorite PIXAR character) from Monsters Inc and Monsters University and Calcifer from Howl’s Moving Castle.
HE ALSO VOICED…: Gary Grossman from The Critic.
16) Andy Richter
CHARACTERS SHOWN: Mort from the Madagascar movies and Natoru from The Cat Returns.
HE ALSO VOICED…: J.F. Amarth from Metalocalypse.
17) Cloris Leachman
CHARACTERS SHOWN: Gran from The Croods and Mrs. Tensedge from The Iron Giant.
HE ALSO VOICED…: Martha from Beavis and Butthead Do America (which NO, I have NOT seen).
18) Emily Blunt
CHARACTERS SHOWN: Juliet from Gnomeo and Juliet and Nahoko Satomi from The Wind Rises.
SHE ALSO VOICED…: That’s just about it.
19) Matthew Broderick
CHARACTERS SHOWN: Simba from The Lion King, Adam Flayman from Bee Movie, and Desperaux from The Tale of Desperaux.
HE ALSO VOICED…: Tack from The Thief and the Cobbler.
20) Billy Connolly
CHARACTERS SHOWN: King Fergus from BRAVE, McSquizzy from Open Season (Oddly enough, he returned for the second movie, but not the third one) and Ben from Pocahontas.
HE ALSO VOICED…: Nobody at this point.
21) Ralph Fiennes
CHARACTERS SHOWN: Victor Quartermaine from Wallace and Gromit: The Curse of the Were-Rabbit and Ramses from The Prince of Egypt.
HE ALSO VOICED…: That’s all, folks!
As far as I can see, I do not count Rasputin or V.V. Argost.
I'll check the other rainbow animated characters.
Will Ferrell also voiced a fisherman on Family Guy
I think J. Pat O’Malley also voiced a villain on Hey There, It’s Yogi Bear
Brendan Fraser also voiced Turbo Thunder on Fairly Odd Parents: Wishology
Sterling Holloway also voiced a wizard named The North Wind on Tukiki and his Search for a Merry Christmas.
Tom Kenny obviously did a whole lot more.
Patrick Warburton also voiced two agents from Fairly Odd Parents: Wishology and an alien cop from Chicken Little
Billy Crystal also did the voice of a talking radio in In Search of Dr. Seuss
Andy Richter also voiced Ben Higgenbottom on The Mighty B
Matthew Broderick also voiced Hubble from Good Boy
Billy Connolly also was the narrator of The Ballad of Nessie
thats pretty hard to believe the fact that Billy Crystal stated in a studio Ghibli production that's like having Owen Wilson being in Spirted Away or Mike Myers being in My Neghibor Totoro