John Candy as Sheriff Bud B. Boomer

Alan Alda as U.S. President

Rhea Perlman as Deputy Honey

Kevin Pollak as Stuart Smiley, National Security Advisor

Rip Torn as General Dick Panzer

Kevin J. O'Connor as Roy Boy

Bill Nunn as Kabral Jabar

G. D. Spradlin as R.J. Hacker

Jim Belushi as Charles Jackal, NBS Reporter

Steven Wright as RCMP Officer at Headquarters

Brad Sullivan as Gus, CIA Canada Desk Agent

Stanley Anderson as Edwin S. Simon, NBS News Anchor

Richard Council as Russian President Vladimir Krushkin

Wallace Shawn as Canadian Prime Minister Clark MacDonald

Michael Copeman as Panzer's Aide

Beth Amos as Ruthie

Bruce Hunter as President's Aide

Jack Mather as Pops

Kenner Ames as Mountie Sergeant

Roger Dunn as Mountie Major

Natalie Rose as Toronto Kid

Michael Woods as State Trooper #1

Matt Cooke as State Trooper #2

Barbara Schroeder as Newswoman

Tara Meyer as Candy Striper #1

Fab Filippo as Candy Striper #2

Carlton Watson as Clarence Thomason

Stan Coles as Secretary of State

Adrian Hough as Russian Aide

Bryan Armstrong as Auctioneer

Kelsey Binder Moore as Ice Cream Girl #1

Leah Binder Moore as Ice Cream Girl #2

Wally Bolland as Special Ops Soldier

Markus Parilo as Omega Force Leader

Jim Czarnecki as Snake

Tony Proffer as Dell

Ben Hamper as Redneck Guy #1

Michael Moore as Redneck Guy #2

Linda Genovesi as Polite Canadian Woman

Sheila Gray as Hacker Hellstorm (voice)

Dana Brooks as Paulette Kalin

Dan Aykroyd as OPP Officer (uncredited)

Andre Rosey Brown as Man (uncredited)

James Carville as Pentagon Agent for Canadian Intelligence (uncredited)

Michael Dyson as Explosives Tech (uncredited)

Gordon Michael Woolvett as Male Candy Striper (uncredited)