This is a list of Looney Tunes and Merrie Melodies characters.

• Babbit and Catstello
• Barnyard Dawg
• Beaky Buzzard
• Beans
• Blacque Jacque Shellacque
• Bosko
• Buddy
• Bunny and Claude
• Bugs Bunny
• Cool Cat
• Claude Cat
• Clyde Bunny
• Cecil Turtle
• Charlie Dog
• Colonel Shuffle
• Conrad the Cat
• Count Blood Count
• Daffy Duck
• Egghead Jr.
• Elmer Fudd
• Foghorn Leghorn
• Foxy
• Gabby Goat
• Goofy Gophers
• Goopy Geer
• Gossamer
• Granny
• Hector the Bulldog
• Henery Hawk
• Hippety Hopper
• Honey Bunny
• Hubie and Bertie
• Hugo the Abominable Snowman
• Inki
• K-9
• Lola Bunny
• Marc Antony and Pussyfoot
• Marvin the Martian
• Melissa Duck
• Merlin the Magic Mouse
• Michigan J. Frog
• Miss Prissy
• Nasty Canasta
• Playboy Penguin
• Penelope Pussycat
• Pepé Le Pew
• Pete Puma
• Petunia Pig
• Piggy
• Porky Pig
• Quick Brown Fox and Rapid Rabbit
• Ralph Wolf
• Road Runner
• Rocky and Mugsy
• Sam Sheepdog
• Slowpoke Rodriguez
• Sniffles
• Speedy Gonzales
• Sylvester
• Sylvester Jr.
• Spike the Bulldog and Chester the Terrier
• Tasmanian Devil
• The Three Bears
• Tweety
• Wile E. Coyote
• Willoughby the Dog
• Witch Hazel
• Yosemite Sam

Porky Pig is an animated cartoon character in the Warner Bros. Looney Tunes and Merrie Melodies series of cartoons. He was the first character created by the studio to draw audiences based on his star power, and the animators created many critically acclaimed shorts featuring the character. Even after he was supplanted by later characters, Porky continued to be popular with moviegoers and, more importantly, the Warners directors, who recast him in numerous everyman and sidekick roles.

Piggy is an animated cartoon character in the Merrie Melodies series of films distributed by Warner Bros.. The character first appeared as a fat, black pig wearing a pair of shorts with two large buttons in the front. His coloration and dress were identical to those of the Walt Disney character Mickey Mouse before the advent of color film. John Kenworthy argues that, considering the fact that some sketches of mice which Hugh Harman had drawn in 1925 were the inspiration for the creation of Mickey Mouse, Harman and Ising never intended to copy Disney.

Playboy Penguin is a character in the animated cartoon Looney Tunes, created by Chuck Jones in the late 1940s and early 1950s. He debuted in 1949's Frigid Hare and he re-appeared in 8 Ball Bunny.

Elmer J. Fudd is a fictional cartoon character and one of the most famous Looney Tunescharacters, and the de factoarchenemy of Bugs Bunny. He has one of the more disputed origins in the Warner Bros. cartoon pantheon. His aim is to hunt Bugs, but he usually ends up seriously injuring himself and other antagonizing characters. He speaks in an unusual way, replacing his Rs and Ls with Ws, so he always refers to Bugs Bunny as a "scwewy wabbit". Elmer's signature catchphrase is, "Shhh. Be vewy vewy quiet, I'm hunting wabbits", as well as his trademark laughter.

Michigan J. Frog is an animated cartoon character who debuted in the Merrie Melodies cartoon One Froggy Evening, written by Michael Maltese and directed by Chuck Jones. In this cartoon, partly inspired by a 1944 Cary Grant film entitled Once Upon a Time, Michigan is a male frog who wears a top hat, carries a cane, sings pop music, ragtime, Tin Pan Alley hits, and other songs from the late 19th and early 20th century while dancing and performing acrobatics in the style of early 20th century vaudeville. He appeared in a later cartoon titled Another Froggy Eveningwhich was released on October 6, 1995. He was also a former mascot of The WB Television Network from that year until 2005, and after The Night of Favorites and Farewells, he was shown as the final image of a white silhouette bowing down to viewers, bringing up The CW Television Network.

Foxy is an animated cartoon character featured in three 1931 animated shorts in the Merrie Melodies series distributed by Warner Bros. He was the creation of animator Rudy Ising, who had worked for Walt Disney in the 1920s.

Foghorn J. Leghorn is a cartoon character that has appeared in Looney Tunes and Merrie Melodies cartoons for Warner Bros. Pictures. He was created by Robert McKimson and writer Warren Foster, and starred in 28 cartoons from 1946 to 1963 in the Golden Age of American Animation. All 28 of these cartoons were directed by McKimson.