Jessica McKenna
Lennon (voice) (26 eps)
Fred Tatasciore
Gluko (voice) (26 eps)
Kat Palardy
Ho Cho Jo (voice) (26 eps)
Ennis Esmer
Stuhven (voice) (26 eps)
Jon Luke Thomas
Mayor (voice) (26 eps)
Dana Snyder
Grandma / Weird Bird (voice) (26 eps)
Lonny Ross
Weights (voice) (11 eps)
Cissy Jones
Frescha (voice) (9 eps)
Kate Micucci
Geremy (voice) (6 eps)
'Weird Al' Yankovic
Mr. Sun (6 eps)
Lennon Parham
Claude (voice) (5 eps)
Jeff Galfer
Radish Dad / Single Tear / The Projector (voice) (5 eps)
Mike Mitchell
Lyle (voice) (4 eps)
Aimee Mann
The Moon (4 eps)
JB Blanc
Derby / Guy With Slide Projector Hat (voice) (3 eps)
Helen Slayton-Hughes
Penelope Pitt-Plebop / Townsfolk (voice) (2 eps)
Richard Steven Horvitz
Stevey Murple (voice) (2 eps)
Betsy Sodaro
Puddin' Peggy (voice) (2 eps)
Yuri Lowenthal
Mord / Gord (voice) (2 eps)
Derek Stephen Prince
Kunu (voice) (2 eps)
Sean Schemmel
Hammer / Announcer / Townsperson (voice) (1 eps)
Alex Jayne Go
Little Bubble (voice) (1 eps)
Brendon Small
Pointy Thing (voice) (1 eps)
Dave Franco
Dave (voice) (1 eps)
June Diane Raphael
Sheena (voice) (1 eps)
Paul Scheer
Raymond the Cloud (voice) (1 eps)
Ben Gruber
Biff / Tiny Shovel (voice) (1 eps)
Michael Bolton
Himself (1 eps)