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Boo is the pet ghost cat of Jonathan Wellington Muddlemore, who's also a ghost, having both died during the American Revolution, and now travel around with a group of teenage mystery solvers called the Funky Phantom Crew.

Physical appearance

Boo resembles a female cat, with ghostly white fur, which also covers the rest of her body and clothing. She wears a white hat, with a feather in it.


She likes to play tricks on Scooby-Doo and Shaggy Rogers.

Powers and abilities

  • Flight
  • Invisibility
  • Intangibility


Scooby-Doo (DC Comics)

Insert details here. (Big House Brouhaha)

Scooby-Doo and Guess Who?

Season one

Insert details here. (A Mystery Solving Gang Divided)


Scooby-Doo! Mystery Incorporated continuity

Boo in Scooby's dream.

Scooby-Doo, Jabberjaw, Captain Caveman, and Speed Buggy had solved the mystery and rescued the meddling kids. Scooby unmasked Lord Infernicus and it was Funky Phantom! Funky Phantom was sick of being a sidekick.

Funky Phantom wanted to become the leader and have his own sidekicks. Funky created Lord Infernicus by using a hologram to make himself appear. He used a little smoke, a skeleton puppet, and fireworks to be Lord Infernicus. He than wanted to send all the kids to Africa and even abducted his own cat, Boo. Funky than used the outfits on the guinea pigs just to throw Scooby and the sidekicks off and it was "perfect genius," until Scooby acted like a hero instead of a sidekick. Boo got angry that Funky Phantom lied to her, and retaliated by jumping on him and scratching him.

Appearances in other media

  • Boo originally appeared in the short-lived The Funky Phantom, produced by Hanna-Barbera, and aired on ABC in 1971. She was voiced by Don Messick.