Cameo

This is a list of cameo appearances Hanna-Barbera characters have made in other H-B works, sorted by the visiting characters.

See also Inside jokes.

Huckleberry Hound (1958)

• Back on Shaq, is back human and dog basketball stadium good luck charm, from Johnny Bravo.
• Huck makes a cameo in "Hector, King of the Britons", an episode of Evil Con Carne.
• Huck gets hit by Hoss Delgado's truck in "Irwin Gets a Clue", an episode of The Grim Adventures of Billy & Mandy.

Quick Draw McGraw (1959)

• Quick Draw McGraw and Baba Looey appear on the train, from Samurai Jack
• One episode of Yogi's Space Race features a cameo by Quick Draw McGraw.
• "I Am My Lifetime", cameo appearance, Quick Draw McGraw is old, from I Am Weasel

The Flintstones (1960)

• "Beard to Be Feared", Fred Flintstone is eyeglassed cool, from Dexter's Laboratory
• "Dad is Disturbed", Betty and Barney Rubble, from Dexter's Laboratory
• "Hot Air Buffoon", Fred Flintstone and Barney Rubble as thugs from The Powerpuff Girls
• "The Big Sleep", Silent Great Gazoo, from Fantastic Max
• "I Am My Lifetime", Betty Rubble as old woman, with Pebbles Flintstone and Bamm-Bamm Rubble, from I Am Weasel
• Fred Flintstone is featured strongly in "Modern Primitives", an episode of The Grim Adventures of Billy & Mandy. Barney and Betty Rubble appear during the end credits.

Yogi Bear (1961)

• "Shotgun Wedding", Yogi is bear of the world, from The Powerpuff Girls
• "I Am My Lifetime", Boo Boo is old cartoon all star Retirement, I Am Weasel
• Yogi Bear and Boo Boo disturb Billy in "Here Thar Be Dwarves", an episode of The Grim Adventures of Billy & Mandy
• Yogi Bear and Boo Boo get hit by Hoss Delgado's truck in "Irwin Gets a Clue", an episode of The Grim Adventures of Billy & Mandy
• Boo Boo animatronic chubby cheese, from Dexter's Laboratory
• "Field Trip", Yogi and Boo Boo, disguise are forest more, from My Gym Partner's a Monkey

Snagglepuss (1961)

• Snagglepuss appears in "Hector, King of the Britons", an episode of Evil Con Carne.

The Jetsons (1962)

• "Beard to Be Feared", George Jetson is eyeglassed cool, from Dexter's Laboratory
• "The Big Sleep", Silent George Jetson, from Fantastic Max
• Various episodes, George Jetson visits Townsville, from The Powerpuff Girls

Wally Gator (1963)

• "Knock It Off", giant alligator is helping, from The Powerpuff Girls

Magilla Gorilla (1964)

• Magilla Gorilla is mentioned (as "Flying Magilla") in The Grim Adventures of Billy & Mandy episode "Giant Billy and Mandy All-Out Attack"

Jonny Quest (1964)

• "I Am My Lifetime", Jonny Quest as old man, from I Am Weasel

Secret Squirrel (1965)

• Secret Squirrel is nearly run over by Hoss Delgado's truck in "Irwin Gets a Clue", an episode of The Grim Adventures of Billy & Mandy.

Wacky Races (1968)

• The new character of Mumbly (star of the 1976 The Mumbly Cartoon Show) bears a strong resemblance to Muttley.
• The new character of Captain Caveman (star of the 1977 Captain Caveman and the Teen Angels series) bears a strong resemblance to the Slag Brothers.
• In 1977, Mumbly (who, in contrast to his role as a detective on his solo series, is now depicted as a villain) and Dread Baron (who strongly resembles Dick Dastardly) became the leaders of the Really Rottens team on the Scooby's All Star Laff-A-Lympics cartoon, which featured three teams of Hanna-Barbera characters (including Mumbly's villainous "Really Rottens" team, Yogi Bear's "Yogi Yahooeys" team that consisted of many of his friends from Yogi's Gang, and Scooby-Doo's "Scooby Doobies" team that included many of the crime-solving characters from that era, including Captain Caveman) competing in races and competitions around the world. However, in the Latin American version of Laff-A-Lympics, Mumbly was credited as Muttley.
• The 1978 series Yogi's Space Race featured Hanna-Barbera stalwarts such as Yogi Bear, Huckleberry Hound, and others racing against each other throughout outer space while fending off a tall, thin villain (Phantom Phink) and his snickering dog (Sinister Sludge).
• The 1980 Series The Flintstone Comedy Show In The Flintstone Family Adventures Penelope Pitstop In The Compact Pussycat No.5 On The Wacky Races Make a Cameo Appearance Voiced By Janet Waldo
• Dick Dastardly and Muttley returned in the 1985 series Yogi's Treasure Hunt as they competed in a treasure hunt against Yogi Bear and many of his prior "Yogi Yahooeys" teammates. Instead of driving the Mean Machine, Dastardly piloted a submarine called The SS Dirty Tricks and a World War I biplane in this series.
• Dread Baron and Mumbly (once again replacing Dick Dastardly and Muttley) return to antagonize Yogi and many of his "Yogi Yahooeys" teammates in the 1987 film Yogi Bear and the Magical Flight of the Spruce Goose.
• Blubber Bear appeared in The New Yogi Bear Show in 1988.
• The 1990 syndicated series Fender Bender 500 starring Dick Dastardly and Muttley driving a revamped "Mean Machine" that is renamed the "Dirty Truckster". They raced against Yogi Bear, Winsome Witch, Quick Draw McGraw, and other Hanna-Barbera stars. Although Dastardly continued to rely heavily on traps and schemes, he and Muttley did manage to win one of these races.
• In 1991, teenage versions of Dick Dastardly and Muttley appeared on the Yo Yogi! series with Yogi Bear, Boo-Boo Bear, Cindy Bear, Snagglepuss, and Huckleberry Hound.
• In 2006, the pilot for a spin-off series titled Wacky Races Forever was produced for Cartoon Network. The series depicted a roster of both new and returning racers competing against each other. Kath Soucie as Penelope Pitstop and Jeff Bennett as Peter Perfect had married and created Perfect Industries, the corporate sponsor of the new Wacky Races, whereas their children James Arnold Taylor as Parker and Kath Soucie as Piper competed in the race. Other characters included the Slag Brothers, Professor Pat Pending, a teenage version of the Gruesome Twosome, and Jim Cummings as Dick Dastardly; and Muttley (working for a new villain named Jeff Bennett as Mr. Viceroy, who sought to steal Perfect Industries). This series wasn't picked up by Cartoon Network.
• In 2015, a Cartoon Network promo for 2016 revealed a logo for a new Wacky Races series. The series will air on Cartoon Network.
• In 2016, DC Comics launched a new comic series called Wacky Raceland. It is a dark and gritty re-imagining of the series set after the apocalypse in a similar vein to the Mad Max franchise.

Scooby-Doo (1969)

• Scooby-Doo and his friends cross over to the "Bravo Dooby-Doo" episode of Johnny Bravo.
• In the Dexter's Laboratory short "Dexter's Lab: A Story", Dexter offers his dog a Scooby snack.
• The Grim Adventures of Billy & Mandy episode "Reap Walking" features a cameo by the five principal members of the Mystery Inc. gang.
• "Keeper of the Reaper", an episode of The Grim Adventures of Billy & Mandy, features a cameo by Scooby-Doo.

Grape Ape (1975)

• In "Giant Billy and Mandy All-Out Attack", an episode of The Grim Adventures of Billy & Mandy, Grape Ape can be seen with his head stuffed into a volcano following a giant monster battle