Brendan Fraser DJ Drake / Tasmanian Devil (voice) / She-Devil (voice) / Self Jenna Elfman Kate Steve Martin Mr. Chairman Joe Alaskey Bugs Bunny-Daffy Duck / Beaky Buzzard / Sylvester / Mama Bear (voice) Jeff Bennett Yosemite Sam / Foghorn Leghorn / Nasty Canasta (voice) Timothy Dalton Damien Drake Billy West Elmer Fudd / Peter Lorre (voice) Heather Locklear Dusty Tails Joan Cusack Mother Bill Goldberg Mr. Smith Dan Stanton Mr. Warner's Brother Dick Miller Security Guard Roger Corman Hollywood Director Kevin McCarthy Dr. Bennell Jeff Gordon Self Matthew Lillard Self Mary Woronov Acme VP, Bad Ideas Marc Lawrence Acme VP, Stating the Obvious Bill McKinney Acme VP, Nitpicking George Murdock Acme VP, Unfairly Promoted Robert Picardo Acme VP, Rhetorical Questions Ron Perlman Acme VP, Never Learning Vernon Wells Acme VP, Child Labor Leo Rossi Acme VP, Climbing to the Top Archie Hahn Stunt Director Allan Graf Interrogator Ryan O'Dell Bugs Bunny Driver Kevin Thompson Dancing Yosemite Sam Arturo Gil Dancing Yosemite Sam Gabriel Pimentel Dancing Yosemite Sam Martin Klebba Dancing Yosemite Sam Eric Goldberg Tweety Bird / Marvin the Martian / Speedy Gonzalez (voice) Bruce Lanoil Pepe le Pew (voice) June Foray Granny (voice) Bob Bergen Porky Pig (voice) Casey Kasem Shaggy (voice) Frank Welker Scooby-Doo (voice) Stan Freberg Baby Bear (voice) Will Ryan Papa Bear (voice) Danny Mann Robo Dog - Spy Car (voice) Mel Blanc Gremlin Car (archive sound) Tara Wilson Dancer Tanee McCall Dancer Gelsey Weiss Dancer Liz Ramos Dancer Becca Sweitzer Dancer Shanti Lowry Dancer Brandon Henschel Dancer John Munro Cameron The Man from Planet X Michael Jordan Self (archive footage) Tom Woodruff Jr. The Metaluna Mutant (uncredited)