"David Kaye as Max Tennyson, Fisherman, Steve, Trucker, Guy 2, Prospector Pete, Spider, Boxer, Lester, Clown 2, Guard, Mr. Billions, Tour Guide (2nd Time), Shock-O"

"Carlos Alazraqui as Jock 1, Minitaur, Chinzilla"

"Kari Wahlgren as Charmcaster"

"Vanessa Marshall as Queen Bee, Woman"

"Max Mittelman as Overflow, Todd, Kid in Crowd, Kid 1"

"Robin Atkin Downes as Hex, Cop, Guy 1"

"Gunnar Sizemore as Billy Billions"

"Debi Derryberry as Simon"

"Rob Paulsen as Bruce, Coach Keene, Clown 5"

"Fred Tatasciore as Hydromander, Hydromander Adolescents"

"Dwight Schultz as Dr. Animo"

"David Hornsby as Wildvine"

"Kath Soucie as TBA"

"Greg Cipes as Stinkfly, Goatatactyl, Kid 2, Clown 3"

"Cree Summer as Hippie Vendor"

"Dee Bradley Baker as Nerd 1, Napoleon (head), Nugget, Tour Guide (1st Time), Slurpstack, Wildmutt"

"Todd Haberkorn as Grey Matter, Monster on tablet, Tourist, Grey Arms, Camper"

"Trevor Devall as fresh , Mark track episode 1,2018"

"Josh Keaton as XLR8, Shady Looking Dude, Referee"

"Travis Willingham as Cannonbolt, Sydney, Ant, Arte"

"Montserrat Hernandez as Gwen Tennyson, Dana, Four Arms (Gwen)"

"" we need more popcorn cat! Get the butter! Yummy butter! Call it buttery popcorn!"

"" I think I sprained one of my doggie ankles."

"" we're not welcome? Nonsense! I wanted to be there!"

"" [Tom blows up a balloon but then it pops] nice try."

"" [Jerry steps on a no mice and pets allowed Mat] be careful Mouse!"

"David Tennant — Professor Honeycutt"

"Roger Craig Smith — Timothy / Pulverizer"

"Danny Jacobs — Snakeweed"

"Robbie Rist — Mondo Gecko"

"Corey Feldman — Slash"

"Peter Lurie — Leatherhead"

"Zelda Williams — Mona Lisa"

"James Sie — Tsoi"

"Keith Silverstein — Mr. O'Neil"

"Big Kish — Fong, Sid"

"Frank Welker (vocal effects) Tom Kenny (speaking) — Dr. Tyler Rockwell"

"Christian Lanz — Fishface"

"Phil LaMarr — Dr. Baxter Stockman"

"Clancy Brown — Dogpound"

"Eric Bauza — Tiger Claw, Hun"

"Kelly Hu - Karai"

"Alan Buckley — Pigeon Pete"

"Jason Griffith as Miyamoto Usagi"