Jeff Bennett
Grandpa / Gaillard (voice) / Charlie (voice) / Punky (voice) / Zan-Tar / Apeman ...

Dee Bradley Baker
Lady Rainicorn / Snow Golem (voice) / Duck / Tabby (voice) / Nessie / Karl / Mom...

Rob Paulsen
HandyCat / Drillbit (voice) / Solomon Fix (voice) / Danny / Tickle Monster (voic...

Kevin Michael Richardson
Ice Monster (voice) / Dad / Announcer / Zit / Applause Fish (voice) / Krunch / R...

Maurice LaMarche
Klemp (voice) / Birdsdorf / Apeman #1 (voice) / Pickle Cop / Elecaptain Sam / Do...

John DiMaggio
Jake / Ice Clops (voice) / Mumpy (voice) / Roy (voice)

John Kassir
Bone / Soldier A / Soldier B / Soldier C (voice) / Ice King / Fire Element (voic...

Annie Mumolo
Strikeout (voice) / Pixie / Little Prince / Munchie (voice) / Melissa / Rusty / ...

Candi Milo
Yumi / Octopus Dude (voice) / Bee (voice) / Nurse Duckett (voice)

Charlie Schlatter
Chris (voice) / Willie / Gnome / Martin / Dwarf (voice) / Sugarfoot (voice)

S. Scott Bullock
Dorothy / Hummingbird (voice) / Dr. Carnage / Timmy / Mr. Abbott (voice) / Gi / ...

June Foray
Mall Walker / Old Man #1 / Man at Garbage Can (voice) / Old Lady (voice)

Jessica DiCicco
Gloom / Fuzzy Animal (voice) / Smart Alec / Plasma Tot (voice)

Billy West
Finster #1 / Johnny Space Guy / Pilot #1 / Space Thug (voice) / Moobeard / Value...

Nika Futterman
Lulu (voice) / Cathy (voice)

Chuck McCann
Navarro (voice) / Buck (voice)

Colleen O'Shaughnessey
Tiffany / Mom (voice) / Kit / Little Girl / Some Kid (voice)

Charlie Adler
Bossy LeCow / Raging Bullfrog (voice) / Finster #2 / Evil Leader / Pilot #2 / Sp...

Lloyd Floyd
Gary Guitar (voice) / Fungus (voice)

Jennifer Hale
Victor's Mom / Express Mail / Co-Worker #3 (voice) / Ms. Penelope (voice)