• Lincoln Loud as Greg
  • Bobby Santiago as Murray
  • Lynn Sr. as Anthony
  • Clyde as Jeff
  • Ronnie Anne as Dorothy the Dinosaur
  • Principal Huggins as Wags the Dog
  • Flip as Paul the Cook
  • Christina as Magdalena the Mermaid
  • Howard as Captain Feathersword
  • Harold as Henry the Octopus
  • Lori Loud as Flora Door
  • Zach Gurdle as Sam
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