This is an incomplete list of Looney Tunes and Merrie Melodies characters.

A

Angus McCrory^{[citation needed]}

A kilt-wearing Scotsman who appears in My Bunny Lies over the Sea, who challenges Bugs Bunny to a game of golf, after he destroys his bagpipes.

He later made his second major role in the Sylvester and Tweety Mysteries episode, It's a Plaid, Plaid World.

He also made a cameo appearance in Space Jam, during the basketball playoff between the Nerdlucks and the TuneSquad.

B

Babbit and Catstello

Babbit and Catstello are Looney Tunes based on the comedic duo Abbott and Costello. Although the short, fat character calls the other one "Babbit", the tall, skinny one never addresses his partner by name; the name "Catstello" was invented later. In their first three cartoons, the "Babbit" character was voiced by Tedd Pierce, and Mel Blanc performed "Catstello". Later, Babbit is voiced by Billy West, and Joe Alaskey performs Catstello.

Originally, the pair were cats in pursuit of a small bird for their meal in the 1942 Bob Clampett-directed cartoon A Tale of Two Kitties, a cartoon notable for the first appearance of the bird character, who would eventually become Warner Brothers cartoon icon Tweety Bird. The hapless duo fail in every attempt to capture the bird, establishing the pattern that would be used time and again in future Tweety cartoons.

Three years later, Babbit and Catstello reappeared in the similarly named Tale of Two Mice, directed by Frank Tashlin. Though their characterizations were the same, the two were now mice, living in a hole in the wall of a typical cartoon kitchen. Their goal in this cartoon was the cheese in the kitchen's refrigerator, the only obstacle being the resident housecat. Babbit attempts to coerce Catstello (often by beating him up) into going after the cheese solo, using various methods to get it (which involved Catstello getting hurt). However, in the end, it is Swiss cheese, which Babbit can't stand. Angrily, Catstello beats him up and begins force-feeding the cheese, uttering one of his archetype Lou Costello's famous lines: "Oh — I'm a baaaaad boy!" (At one point in A Tale of Two Kitties, he similarly remarks, "I'm a baaaaad pussycat!")

The characters make a very brief cameo appearance in canine form in Robert McKimson's second Warner Brothers short 'Hollywood Canine Canteen' released in April 1946. They play the pets of the real Abbott and Costello, Costello's dog, refers to Abbott's dog as 'Babbit'.

Finally, six months later in October 1946, Robert McKimson returned to the pair in The Mouse-Merized Cat, wherein Babbit uses a book to hypnotize Catstello. Babbit has Catstello believe he's a dog in order to scare off the cat so they can get to the food in the refrigerator. However, the cat soon studies hypnosis and is able to reverse Babbit's spell. This results in Catstello running back and forth between the two as they continue use hypnosis. Finally, Catstello becomes fed up with Babbit making him the fall guy, and turns the tables on both Babbit and the cat, hypnotizing them into believing they are, respectively, a cowboy and his trusty steed. Catstello trickes Babbit with his Yosemite Sam like voice makes babbit utters a deliberately misworded variation on the Lone Ranger's classic catchphrase — "Hi yo, Sliver, awaaayy!" — before he and the cat gallop away. The final scene shows Catstello eating cheese and reading a book on living alone, before turning to the audience and once again reciting "Oh — I'm a baaaaadd boy!"

The pair have made few appearances since then, mainly cameos in modern Warner Brothers animated projects such as The Sylvester and Tweety Mysteries voiced by Jim Cummings and Joe Alaskey.

(The) Barnyard Dawg

Beans the Cat

Beans as seen in Hollywood Capers

Beans the Cat was the third Looney Tunes cartoon character star after Bosko and Buddy. Created by Leon Schlesinger, Beans is most likely modelled after Waffles, a feline from the Van Beuren Studio, as both characters are black-furred cats in overalls.

He made his first appearance in the Merrie Melodies cartoon I Haven't Got a Hat (1935), along with Porky Pig who would have a much longer run in the series. He then made a cameo in The Country Mouse, another Merrie Melodies short release that same year.

Before having a role in another cartoon, Beans was already seen in the "That's all folks!" closings in the last three Buddy shorts. Finally, six months following his debut film, Beans starred in A Cartoonist's Nightmare which would be his first solo cartoon, followed by Hollywood Capers. Beans then began appearing with characters from the cast of I Haven't Got a Hat.

Featured on screen in only a couple of years, Beans appeared in just 9 shorts. His swan song was Westward Whoa in 1936. Before being retired completely, he made a brief appearance in Plane Dippy.

Beans was voiced at first by Billy Bletcher and sometimes Tommy Bond, and later by Will Ryan.

Black and White Cat

A nameless male black and white cat who appears in the shorts Swallow the Leader (1949), It's Hummer Time (1950), A Fractured Leghorn (1950), Early to Bet (1951) and Leghorn Swoggled (1951). He is voiced by Mel Blanc. In the second and fourth, the cat is antagonised by an unnamed bulldog who gives him either humiliating or also painful sentences for bugging him in the second cartoon and for losing bets in the fourth short.

Blacque Jacque Shellacque

Blacque Jacque Shellacque was created by Robert McKimson. While similar in many ways to Yosemite Sam—both are short in stature and temper—Blacque Jacque possesses his own unique characteristics, not the least of which is his comically thick French Canadian accent, performed by Mel Blanc. Also, like Yosemite Sam and many other villains, Blacque Jacque Shellacque does not have a high level of intelligence, preferring to use force instead of strategy to fight Bugs.

Blacque Jacque first appeared in Bonanza Bunny, which takes place in the middle of the Klondike gold rush. Blacque Jacque attempts to seize Bugs' bag of gold (actually "a bunch of rocks and some yellow paint," according to Bugs) through card cheating, trickery, and out-and-out threats, but Bugs outwits him as always and defeats him by replacing his bag of gold with gunpowder while poking a hole in the bag and tossing a lit match on it causing a massive explosion.

Blacque Jacque later clashed with Bugs in 1962's Wet Hare, in which his illegal damming of a river ("Me feel like pezky little beav-aire!") brings him into conflict with the rabbit—not only because he is committing a crime, but because he has blocked off the waterfall that Bugs uses as a shower. After demolishing several of Blacque Jacque's dams, Bugs turns the tables by damming the river upstream of Jacque's dam. Jacque, unsurprisingly, is enraged and wheels a small cannon along the riverbed to destroy Bugs' dam—but when he does he only reveals another dam further upstream. Jacque blows up several of Bugs' dams in succession and finally follows Bugs all the way to the "Grand Cooler Dam" (a pun on the name of the Grand Coulee Dam). Jacque tries to blow it up with his cannon, but the dam is so massive and thick that the cannonball he launches ricochets back into the cannon's barrel and the recoiling force lands both Jacque and the cannon into the back of a waiting paddy wagon.

Blacque Jacque also appears as a common enemy in Bugs Bunny: Lost in Time.

Bosko

Bruno

Bruno is a gray dog, and is Bosko's pet dog. He has a resemblance to Disney's Pluto.

Buddy

Bunny and Claude

Bunny and Claude are robbers, based on the real-life Bonnie and Clyde and the then recent film version about the pair's life that had been released by Warner Brothers They are a well-dressed rabbit male (Claude) and female (Bunny) who are always pulling off carrot heists, and their catch phrase is "We rob carrot patches", based on the film Bonnie and Clyde's "We rob banks". Bunny was voiced by Pat Woodell and Claude was voiced by veteran WB voice actor Mel Blanc. They both speak with pronounced Southern accents.

They appeared in two cartoons produced by Warner Brothers Animation and released by Warner Brothers- Seven Arts in 1968, titled Bunny and Claude: We Rob Carrot Patches and The Great Carrot Train Robbery (the latter was held over to 1969). Both films were directed by Robert McKimson, and were his first two cartoons he directed in his comeback to Termite Terrace.

Bunny and Claude were always chased by a stereotypical Southern sheriff (also voiced by Mel Blanc, his voice sounded similar to Foghorn Leghorn and Yosemite Sam), whom would always pursuit them in his police cruiser, even though the gangster rabbits would always foil his plans.

Bugs Bunny

Honey Bunny

Lola Bunny

Beaky Buzzard

Beaky Buzzard is a buzzard (although he more closely resembles a vulture or condor) with black body feathers and a white tuft around his throat. His neck is long and thin, bending 90 degrees at an enormous adam's apple. His neck and head are featherless, and his beak is large and yellow or orange, depending on the cartoon. Beaky bears a perpetual goofy grin, and his eyes look eternally half-asleep.

The character first appeared in the 1942 cartoon Bugs Bunny Gets the Boid, directed by Bob Clampett. The cartoon's plot revolves around the hopeless attempts of the brainless buzzard, here called Killer, to catch Bugs Bunny for his domineering Greek mother back at the nest. Beaky's voice was modeled after ventriloquist Edgar Bergen's character Mortimer Snerd, earning Beaky the nickname "Snerd Bird." The voice itself was provided by voice actor Kent Rogers.