Cast:
- Yakko as Mordecai
- Wakko as Rigby
- Mr. Plotz as Benson
- Flavio as Skips
- Hello Nurse as Margaret
- Ralph as Pops
- Sonic the Hedgehog (From Sonic The Hedgehog) as Muscle Man
- Miles "Tails" Prower (From Sonic The Hedgehog) as High Five Ghost
- The Brain as The Evil British Taxi
- Knuckles the Echidna (From Sonic The Hedgehog) as Don
- Newt as Doug
- Dot as Eillien
- Duke the Squirrel as G.B.F
- Runt as Jeremy
- Skippy Squirrel as Chad
- Sid the Squid as Iacedrom
- Beanie the Brain-Dead Bison as Ygbir
- Slappy Squirrel as Susan
- Dr. Otto ScratchNSniff as Mr. Maellard
- Miss Flamiel as Starla
- Axl Gator (From Taz-Mania) as Kid #1
- Bull Gator (From Taz-Mania) as Kid #2
- Marita as Audrey
- Michaelangelo as Duck Collector
- Mario (From Super Mario Bros.) as The Astronaut #1
- Luigi (From Super Mario Bros.) as The Astronaut #2
- Robots and Badniks (From Sonic The Hedgehog) as Hot Dogs
- Pesto as Peeps
- Squit as Rigby's Bodieless Consieness
- Walter Wolf as Warlock
- Bobby as Park Ranger