- Lt. Commander Thomas "Tom" Dodge as Finn
- Lt. Emily Lake as Lady Rainicorn
- Lt. Martin T. "Marty" Pascal as Jake
- Chief of the Boat as Beemo
- Rear Admiral Yancy Graham as Donut Guy
- Commander Carl Knox as Cinnamon Bun
- Culinary Specialist 2nd Class Buckman as Chet
- Fireman Niitro "Mike" as Duke of Nuts
- Planesman 1st Class Jefferson "R.J." Jackson as Starchy
- Seaman Stanley "Spots" Sylvesterson as Jeramine
- Engineman 1st Class Brad Stepanak as Sir Slicer
- Sonarman 2nd Class E.T. "Sonar" Lovacelli as Ice King
- Vice Admiral Dean Winslow as Mr. Cupcake
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