Jessica McKenna
Lennon (voice)

Fred Tatasciore
Gluko (voice)

Kat Palardy
Ho Cho Jo (voice)

Ennis Esmer
Stuhven (voice)

Jon Luke Thomas
Mayor (voice)

Dana Snyder
Grandma / Weird Bird (voice)

Lonny Ross
Peevy / Worm (voice) / Cricket / Crab #1 / Horse (voice) / Horse / Hot Chocolate...

Cissy Jones
Frescha (voice) / Frescha / Llama (voice) / Frescha / Reporter / Snake (voice) /...

Kate Micucci
Geremy (voice) / Geremy / Candy Bar (voice) / Geremy / Hail Lady (voice)

'Weird Al' Yankovic
Mr. Sun

Lennon Parham
Claude (voice) / Claude the Buff Hamster (voice) / Claude / Radish Mom (voice)

Jeff Galfer
Radish Dad (voice) / Radish Dad / Single Tear / The Projector (voice) / Radish D...

Mike Mitchell
Lyle (voice) / Bumble Bee / Lyle / Streamer (voice) / Gluko's Bed / Lyle (voice)...

Aimee Mann
The Moon

Roger L. Jackson
Mr. Sprinkles (voice)

JB Blanc
Red Pen / Cauliflower (voice) / Derby / Red Pen (voice) / Derby / Guy With Slide...

Helen Slayton-Hughes
Penelope Pitt-Plebop (voice) / Penelope Pitt-Plebop / Townsfolk (voice)

Richard Steven Horvitz
Stevey Murple (voice) / Pacifier / Jerry / Bear (voice)

Betsy Sodaro
Puddin' Peggy (voice) / The Sherris (voice)

Yuri Lowenthal
Mord / Gord (voice)