We Wish You a Merry Walrus 2

Plot: Roofhowse and his friends have successfully saved Merry Walrus from the evil Herbert P. Bear and his sidekick, Klutzy the crab. Even though Herbert is satisfied that he has headphones, he wants to find a way out of the dome. Now, Roofhowse and his friends must stop Herbert again before he reaches the Merry Walrus. But this time, he's teaming up with some old villains. They bump into some old friends, Enrique and Rockhopper. They encounter some new friends, like Gary, Rookie, Jet Pack Guy and PH.
Cast
James Arnold Taylor as Roofhowse
Jason Marsden as Sydmull
Fred Tatasciore as Captain Rockhopper
Dave B. Mitchell as Herbert P. Bear
Mikey Kelly as Blizzard 
Cat Taber as Jangrah/ DJ Cadence
Cristina Pucelli as Lorna 
Brian Cummings as Merry Walrus
Dee Bradley Baker as Yarr/Enrique/Puffles 
Jeff Bennett as Gary the Gadget Guy
Steven Blum as Jet Pack Guy/ Squidzoid
Ashleigh Ball as PH
Rob Paulsen as Rookie
Tara Strong as Dot
Frank Welker as Protobot/Destructobot
George Takei as Sensei