Des McAnuff Director Rene Russo Natasha Voice Jason Alexander Boris Voice Piper Perabo Karen Sympathy Voice Randy Quaid Cappy Von Trapment Voice Robert De Niro Fearless Leader Voice, Producer June Foray Rocky Voice Keith Scott Bullwinkle, Narrator, Cartoon Boris Badenov, Cartoon Fearless Leader Voice Janeane Garofalo Minnie Mogul Voice Carl Reiner P.G. Biggershot Voice Jonathan Winters Whoppa Chopper, Pilot, Ohio Cop with Bullhorn, Jeb Voice John Goodman Oklahoma Cop Voice Kenan Thompson Lewis Voice Kel Mitchell Martin Voice James Rebhorn President Signoff Voice David Alan Grier Measures Actor Norman Lloyd Wossamotta U. President Actor Jon Polito Schoentell Actor Whoopi Goldberg Judge Cameo Voice Billy Crystal Mattress Salesman (uncredited) Actor Ed Gale The Mole Actor Corey Foxx French Student (uncredited) Actor Jeremy Maxwell Angry French Student (uncredited) Actor Jay Ward Writer Kenneth Lonergan Writer David Nicksay Executive Producer Tiffany Ward Executive Producer Mark Mothersbaugh Original Music Dennis Virkler Film Editing Karen Margiotta Casting Mary Margiotta Casting Gavin Bocquet Production Design Bill Rea Art Director Hilton Rosemarin Set Decoration Marlene Stewart Costume Design Roger Guyett Visual Effects Supervisor Jane Rosenthal Producer Allison P. Brown Producer