* ActorAllusion: When Freddy was trying to come up with a new catchphrase and he says "Hey, what about [[WesternAnimation/PinkyAndTheBrain narf?"]], Peck (Creator/RobPaulsen) says "Nah."
** Creator/JimCummings guest stars in "Iron Otis" as a RaginCajun trying to kill a character voiced by Paulsen. [[WesternAnimation/TeenageMutantNinjaTurtles1987 Sounds familiar.]]
** John Kassir voices the spirit of a dead rabbit in "The Haunting". [[WesternAnimation/TinyToonAdventures This isn't the only time he voiced a rabbit.]]
* InMemoriam: "Otis' Mom" was dedicated to Creator/RobPaulsen's mother.
* TheOtherDarrin: Otis is voiced by Kevin James in the (movie) and by Chris Hardwick in the (series). However, it's subverted with everyone else (most of them voice actors), who got to stay for the series.
* RecycledScript: "Free Willy" is very similar to the Jimmy Neutron episode "Monster Hunt". For bonus points, Gene Grillo wrote both episodes, Jim Cummings voices both captains, and Rob Paulsen voices the token nerdy character.
* ScrewedByTheNetwork: It was moved to Nicktoons Network in 2011, Nick didn't seem to promote much with the show later on.