A Creator/HannaBarbera series [[FollowTheLeader not unlike]] their earlier success ''Franchise/ScoobyDoo'', ''The Funky Phantom'' featured three teenagers Skip, April and Augie and their dog, Elmo. While trying to get out of a storm, they entered an old house where the longcase clock was wrong. Upon setting the clock to midnight, they released two ghosts: Jonathan Wellington "Mudsy" Muddlemore, a ghost from UsefulNotes/TheAmericanRevolution, and his cat, Boo. The two of them allegedly hid inside the clock from the British during the Revolutionary War, but then couldn't get out and eventually died inside. Ever since being freed by their new friends, Mudsy and Boo have accompanied them on many mysteries, always giving an invisible helping hand.

The show--Hanna-Barbera's first series with animation farmed out overseas (Air Programs in UsefulNotes/{{Sydney}}, UsefulNotes/{{Australia}})--aired on Creator/{{ABC}} in 1971. The voice of Mudsy, provided by Creator/DawsButler, was identical to his voice work for the character Snagglepuss. Butler went so far as to include Snagglepuss' {{catch phrase}}s, such as [[VerbalTic appending sentences with the word "even"]].
!!This cartoon provides examples of:

* ActorAllusion: Probably unintentional, but amusing enough--when Skip is hanging from a tree branch in the last episode, Augie remarks "I always knew he was part monkey." Micky Dolenz--most famous as the drummer for TheMonkees--voiced Skip.
* AscendedExtra[=/=]StalkerWithACrush: In the Gold Key comics, Mudsy had one in the form of Revolutionary War belle spirit Priscilla Atwater.
* BeautyBrainsAndBrawn:
** Skip: Brains
** April: Beauty
** Augie: Brawn
* BlondeBrunetteRedhead: April, Skip, and Augie.
* CatchPhrase: Mudsy's "It's Funky Phantom time!"
* ComicBookAdaptation: Eleven issues by Western Publishing Company's Gold Key division (March 1972 - March 1974).
* DangerouslyShortSkirt: April's skirt is too short for comfort.
* ExpositoryThemeTune: There were two--one performed by the kids and another (after three episodes) by some studio performers.
* {{Expy}}: Mudsy is essentially Snagglepuss in the form of a human ghost from the American Revolution.
* FiveManBand:
** TheHero: Mudsy
** [[TheLancer The Lancers]]: Skip and Augie.
** TheSmartGuy: Skip
** TheBigGuy: Augie
** TheChick: April
** [[TeamPet Team Pets]]: Elmo and Boo.
* HeadlessHorseman
* HeyItsThatVoice: Franchise/TheMonkees' Micky Dolenz was the voice of Skip.
** That's Daws Butler doing his Snagglepuss voice for Mudsy, right down to his verbal tics, even.
* IntercontinuityCrossover: Mudsy (along with several other Hanna-Barbera characters) appeared in the ''WesternAnimation/ScoobyDooMysteryIncorporated'' episode "[[Recap/ScoobyDooMysteryIncS1E14MysterySolversClubStateFinals The Mystery Solvers Club State Finals]]".
* KeepCirculatingTheTapes: Averted as of 2010; the entire series was released on DVD through Warner Archive.
* LoveTriangle: Possibly one of these with Augie, April, and Skip. Augie and Skip fight for April's attention and she seems attracted to them both to a certain extent.
* MagicSkirt: April jumps up and down wearing a pleated cheerleader skirt in "Pigskin Predicament," and it does not flip up.
* OurGhostsAreDifferent
* PunnyName: Henry Fowler, who runs Chicken Delicious, and Mr. Angus, who owns an angus and roast beef chain.
* ScoobyDooHoax
* ScoobyStack
* SmurfettePrinciple: April is the only girl in the group.
* TeamPet: Elmo and Boo.
* TitleScream