This thread is about sitcom actors who have performed cartoon voice-over work. I'm going to start with both Howard Morris and Allan Melvin, from The Andy Griffith Show. Together, they were involved with cartoon voice-overs for Beetle Bailey and Magilla Gorilla, among others. Tom Bosley was heard on Wait til your Father Gets Home and Yogi's Gang before Happy Days hit the airwaves. Ed Asner was heard on Spider-Man and Gargoyles, among cartoon shows he was involved with. We already know about Bill Cosby as host of Fat Albert and the Cosby Kids. That list of sitcom stars that performed cartoon voice-over work goes on and on, and I can't get to everything, so I'm going to give you all the opportunity to add to this thread-that is for those who can read the closing credits of cartoon shows and come across any familiar names on the voice cast lists.

John Ritter in Fish Police and Clifford the Big Red Dog, among others (such as guest shots on King of the Hill and Batman Beyond).

Elizabeth Montgomery and Dick York did the voices of their Bewitched characters in the final season of The Flintstones. EM also played the voice of a barmaid on an episode of the Batman cartoon series in 1995.

James Avery (Fresh Prince of Bel Air) was the voice of Shredder in the TMNT cartoon series in the late '80s-early '90s.

Lorenzo Music (Carlton the Doorman on Rhoda) was Garfield the Cat, of course!! His co-star Julie Kavner voices Marge, Patty and Selma on The Simpsons. Marcia Wallace (Bob Newhart Show) is the voice of Mrs. Krabappel.

Sandy Duncan did voiceovers for Scooby Doo, and I think Danny Bonaduce did as well.

Ron Glass (Barney Miller) and Jack Riley (Bob Newhart Show) voiced characters on Rugrats.

Tom Bosley was also the voice of the title character in David the Gnome.

Shelley Fabares (Donna Reed Show, Coach) -- Justice League and Superman

Meredith MacRae (My Three Sons, Petticoat Junction) -- Batman: The Animated Series

Bea Benadaret (Petticoat Junction, Beverly Hillbillies) -- The Flintstones

Ted Knight (Mary Tyler Moore, Too Close for Comfort) -- Superfriends

And , while not a "star," Olan Soule (Andy Griffith Show) -- Superfriends

Bill Fagerbakke of Coach is the voice of Patrick Star on Spongebob Squarepants

Character actor Scatman Crothers did many voices including Hong Kong Phooey

Let's add a few more:

Tim Daly was the voice of Superman in the late 90s

Mike Farrell was Jonathan "Pa" Kent

Don Most was heard on Fonz and the Happy Days Gang, Teen Wolf and Dungeons and Dragons

Barbara Billingsley on Muppet Babies

Don Adams was Tennessee Tuxedo and Inspector Gadget

Sherman Hemsley was Earl Sinclair's boss, B.P. Richfield on Dinosaurs

Richard Moll was the voice of Batman villain, Two-Face

Kelsey Grammer voicing numerous characters on The Simpsons

Fellow posters, we're doing good so far. Let's keep posting on this topic.

Agnes Moorehead and Paul Lynde (Bewitched), Danny Bonaduce, and Pamelyn Ferdin (Odd Couple) all did voices in the 1973 version of Charlotte's Web.

Cousin Oliver himself, Robbie Rist, was the voice of Michaelangelo in the first few TMNT features.

Roscoe Lee Browne, who recently passed on, played the voice of Box in the movie version of Logan's Run.

Craig T. Nelson (Coach) was the voice of Mr. Incredible in The Incredibles.

Georgia Engel (Mary Tyler Moore Show, Coach) did voiceovers in The Care Bears Movie, Dr. Doolittle 2, and Reading Rainbow, among others.

I think Dave Coulier (SP?) (Full House) did some voices on Muppet Babies and some other shows

mila kunis jackie of that 70s show is the voice of meg griffin on family guy

Brad Garrett as the Big Dog on 2 Stupid Dogs

Bill Fagerbakke as Broadway on Gargoyles

Alan Young as Scrooge McDuck

Charles Nelson Reilly as Frank Frankenstone on The Flintstones Comedy Show(1980-81 season)

John Astin as both Bull Gator(Taz-Mania) and Gomez Addams, during the early 90s

George Segal as Dr. Benton Quest

Mindy Cohn as Velma Dinkley on What's New, Scooby-Doo?

Wally Cox was the voice of Underdog

Jack Burns was the voice of Ralph the Neighbor on Wait Til Your Father Get's Home.

Sally Struthers and Jay North were the voices of Pebbles and Bamm Bamm on the Pebbles and Bamm Bamm Show

I think Dave Coulier (SP?) (Full House) did some voices on Muppet Babies and some other shows
You're right; he was the voice of Animal. Howie Mandel also did voiceovers on the Muppet Babies early on.

I think Dave Coulier (SP?) (Full House) did some voices on Muppet Babies and some other shows

You are correct! Dave Coulier also took over for Lorenzo Music as the voice of The Real Glostbusters' Peter Venkman. Speaking of that very show, Arsenio Hall was Winston Zeddmore for two years.

According to the imdb, Suzanne Pleshette was one of the voices in Lion King 2.

jack albertson was the voice of amos slade in the fox and the hound

-Tom Hanks (Bosom Buddies): The voice of Woody on the Toy Story movies.

-Tim Allen (Home Improvement): The voice of Buzz Lightyear on the Toy Story movies

-I think Tony Danza was a guest star on Family Guy

Ellen DeGeneres was the voice of the mentally challenged fish (Dory?) on "Finding Nemo."

Check out "King of the Hill." Every episdode has at least one guest voice. The challenge is trying to guess who it is!

John Goodman from Roseanne did the voice of Larry the Lion in Father of the Pride and Katey Sagal from Married With Children voiced Leela in Futurama.

More from Ed Asner:

Angry Beavers, The (1997, Animated Series) Risk Master "I Dare You"
Batman: The Animated Series (1992, Animated Series) Roland Daggett
Boondocks, The (2005, Animated Series) Ed Wuncler "The Block is Hot"
Bruno the Kid (1996, Animated Series) Engineer
Buzz Lightyear of Star Command (2000, Animated Series) Fixer "The Return of XL"
Captain Planet and the Planeteers (1990, Animated Series) Hoggish Greedly
Christmas is Here Again (2007, Animated Film) Krad
Duckman (1994, Animated Series) Mort Sidelman "The Germ Turns"
Fish Police (1992, Animated Series) Chief Abalone
Freakazoid! (1995, Animated Series) Sgt. Mike Cosgrove
Gargoyles (1994, Animated Series) Hudson
Happily Ever After (1993, Animated Film) Scowl the Owl
Hercules (1998, Animated Series) Mentor "Hercules and the Disappearing Heroes"
Johnny Bravo (1997, Animated Series) Dr. Miller "I.Q. Johnny"
Life with Louie (1995, Animated Series) Mr. Applegate "The Kiss is the Thing"
Magic Schoolbus, The (1994, Animated Series) General
Max Steel (2000, Animated Series) Chuck Marshak
New Adventures of Captain Planet, The (1996, Animated Series) Hoggish Greedly
Olive, the Other Reindeer (1999, Animated Film) Santa
Our Friend Martin (1999, Animated Film (Direct-to-Video)) Mr. Harris
Real Adventures of Jonny Quest, The (1996, Animated Series) (additional voices)
Sissy Duckling, The (1999, Animated Film) Elmer's Father
Sonic the Hedgehog (1993, Animated Series) Cat "Sonic Boom"
Spider-Man (1994, Animated Series) J. Jonah Jameson
Teamo Supermo (2002, Animated Series) Mr. Large
W.I.T.C.H. (2005, Animated Series) Napoleon the Cat
Wild Thornberrys, The (1998, Animated Series) Frank Hunter "The Anniversary"
X-Men Legends (2004, Video Game) Morlock Healer

Cree Summer from A Different World voiced Elmira on Tiny Toon Adventures.

Jennifer Aniston voiced on South Park and Jonathon Taylor Thomas was young Simba on The Lion King.

Kelsey Grammer voicing numerous characters on The Simpsons

Actually, I think he just did Sideshow Bob on a few episodes. David Hyde Pierce did an episode of the Simpsons, too, playing...you guessed it, Sideshow Bob's brother, Cecil.

Phil Hartman also did voices for the Simpsons as Troy McClure and Lionel Hutz.

David Schwimmer was in Madagascar.

Wendy Mallick (Just Shoot Me) is a voice on The X's.

Speaking of the Lion King, Robert Guillaume (Benson) was the voice of Rafiki the monkey.

Zach Braff (Scrubs) was the voice of Chicken Little.

The Brady Kids did their own voices on their cartoon, The Brady Kids. Mila Kunis (Jackie Burkhart) of That 70's show does the voice of Meg Griffin of Family Guy.

I think Sabrina LeBeauf, best known as Sondra on "The Cosby show", was a voice talent on a cartoon. I can't find out which one it is right now though.

Richard Dawson did some random voices on Hong Kong Phooey and in a couple animated features, "Treasure Island" (also staring the voice of The Monkees' Davy Jones) and "Oliver and the Artful Dodger."

Jennifer Aniston also was a voice in the movie The Iron Giant..as well as Harry Connick Jr... (LEO) will and grace

Sean Hayes was the voice of the cat Mr Tinkles..in CATS and DOGS
also the goldfish in the CAT and the HAT

Courtney Cox Arquette was Daisy in Barnyard

Will Smith in Shark Tale..

Kevin James also in BARNYARD....


and most important David Schwimmer was the voice of Melman the Neurotic giraffe in Madagascar

sara gilbert the simpsons,played the new girl next door whom bart had a crush on.