Jeff Bennett
Patient / Geezer / Workman (voice) / Zan-Tar / Apeman #3 (voice) / Fanman / Lenn...

Dee Bradley Baker
Roccos / Audrey / Snail / Dinosaur (voice) / Carrot / Seymour (voice) / Duck / T...

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

Kevin Michael Richardson
Infinite Goliath / Hondo / Mechaneck (voice) / Dad / Announcer / Zit / Applause ...

Maurice LaMarche
Bjorn / Working Troll #1 (voice) / Pickle Cop / Elecaptain Sam / Dog Catcher (vo...

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

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

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

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

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

S. Scott Bullock
Gi / Raffe / Co-Worker #2 (voice) / Dorothy / Hummingbird (voice) / Dr. Carnage ...

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

Chuck McCann
Buck (voice) / Navarro (voice)

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

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

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

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