Mark Hamill

as Donald Swan

Donna D'Errico

as Liberty Lass / Papaya Smith

Billy West

as Leo Matuzik

Lori Alan

as Anita Levine

Daran Norris

as Commander Courage / Bruce Easly

Bruce Campbell

as Bruce Campbell

Kevin Smith

as Kevin Smith

Tom Kenny

as Derek Sprang

Jill Talley

as Jill Sprang

Stan Lee

as Stan Lee

Peter Mayhew

as Peter Mayhew

David Prowse

as David Prowse

Jeremy Bulloch

as Jeremy Bulloch

Jonathan Winters

as Wally

J.J. Abrams

as J.J. Abrams

Steve Ditko

as Steve Ditko

Edd Hall

as Celebrity Party Host Edd Hall

Roger Rose

as Taylor Donohue

Jess Harnell

as Ricky

Scott LaRose

as Mac (Comic Store Pal #1)

Gary Anthony Williams

as Kurt (Comic Store Pal #2)

Arleen Sorkin

as Ms. Q (Studio Secretary)

James Arnold Taylor

as J.T.

Debi Derryberry

as Debby Newman

Jim Cummings

as Dr. Cedric Perview

Kevin Michael Richardson

as Ice Tray

Tara Strong

as Hotel Maid

Gina Gattone

as 2nd Liberty Lass

Peter David

as Peter David

Ray Harryhausen

as Ray Harryhausen

Matt Groening

as Matt Groening

Chase Masterson

as Chase Masterson

Gary Owens

as Gary Owens

Greg Nicotero

as Greg Nicotero

Beth Hathaway

as Beth Hathaway

Paul Dini

as Paul Dini

Mark Evanier

as Mark Evanier

Bill Mumy

as Bill Mumy

Ron Perlman

as Ron Perlman

Mike Mignola

as Mike Mignola

Laura Nativo

as Laura Nativo

Nathan Kane

as Nathan Kane

Andy Mangels

as Andy Mangels

Mark Teague

as Mark Teague

Matt Mariska

as Matt Mariska

Nina Kaczorowski

as Nina Kaczorowski

Amanda Elliott

as Amanda Elliott

Maurice LaMarche

as Maurice LaMarche

Rob Paulsen

as Voice Actor

Sid Caesar

as Old Army Buddy

Hugh Hefner

as Hugh Hefner

Craig Crumpton

as Convention Attendee

Eric Fell

as Comic Fan

Espen Jorgensen

as Another Face in the Crowd

Joel Thingvall

as Comic Fan (uncredited)

Lloyd Kaufman

as Lloyd Kaufman (uncredited)

Phil Morris

as Self