Harry the Evil Hat
David
Howard the Duck (voice)
Radio DJ
Dour Dennis (voice)
Self - Actor, "Scooby-Doo 2: Monsters Unleashed"
Patrick
Himself
Brandon
Fighter Pilot (uncredited)
Friend (uncredited)
Dr. Charles Seaver
Christopher Guest
The Nerd / Lennie Small / Snoopy / Museum Guide / Walker (voice)
Howard the Duck (voice)
King Kong (voice)
Pete Gunderson
Squint (voice)
The Nerd / Santa Claus / Rudolph / Hermey the Elf (voice)
Lumpy
Leonardo (voice)
The Nerd / Batman / Robin / Aquaman / Additional Voices (voice)
Yellowbird (voice)
Dino
Self
Howard the Duck (voice) (uncredited)
The Nerd / Batman / Robin / Scarecrow / Darkseid / Ace the Bathound / Toyman / Dr. Fate / Jimmy Olsen / Black Manta / Aquaman / Clayface / The Penguin / Killer Croc / Cyborg / Banehound / Various (voice)
Himself
Various (voice)
Himself
Sen. Burdick
Zachary Newman
Various (voice)
The Nerd / Batman / Robin / Aquaman / The Penguin / Martian Manhunter / Toyman / Scarecrow / Gorilla Grodd / Little Cheese / Swamp Thing / Abin Sur / Ganthet / Green Arrow / Hawkman / Jimmy Olsen / Various (voice)
White Nerd #2
Milo (voice)
Himself
Chris Griffin as Luke Skywalker (voice)
Obi-Wan Kenobi / IG-88 / Weequay / Prune Face / R5-D4 (voice)
Chris Griffin (voice)
Expo Fan (uncredited)
Chris Griffin as Luke Skywalker (voice)
Loki / Tree / Jaden / Reindeer / Elf / Various (voice)
Ralph White
Chris Griffin (voice)
The Nerd / Anakin Skywalker / Obi-Wan Kenobi / Bossk (voice)
Ezekiel
Chris Griffin as Luke Skywalker (voice)
Various (voice)
Jonah the Taper
The Nerd / Qui-Gon Jinn / Ponda Baba / Max Rebo (voice)
Slut Wars Host (uncredited)
Action Figure Collector
Various (voice)
Chris Griffin / Additional Voices (voice)
Murray
Shotgun - Music Video Director (uncredited)
Dan Mott
James St. James
Scott Evil
Johnny Marbles
Duane Cody
Danny Wax
Boyd (voice)
Travis - Du Jour
Douglas
Scott Evil
Cornelius
Mick
Nelson Nash (voice)
Selby (uncredited)
Kenny Fisher
Homophobe 2
3rd Youth at Hot Dog Stand
Punk Neighbor
Homophobe 3
Tyler Burns
Wiley
Stilts
Fred Glass
Jason
Chuckie Miller
Malcolm
'Egg' Berry
Benjamin 'Ape-Face' Andrews