Hamm (voice)

Tom Roan

Milo The Monster Handler (voice)

Fritz (voice)

Rootie (voice)

Self - Interviewee

Construction Worker Fennwick (voice)

Dad Everett

Hamm (voice)

Hamm (voice)

Hamm (voice)

Daniel Nilwater

Underminer (voice)

Grandpa Growl (voice)

Conrad Baines

Juan Ortodoncia (voice)

Salty (voice)

Mack (voice)

Mutt (voice)

Husband Crab (Bill) (voice)

Dr. Charles Burke

Self

Mr. Hartz

Self

Earl (voice)

Fritz (voice)

Mick Vaughn

Warden

Warden Jeffrey Mitchell

Officer Bender (voice)

Logan Walker

Brodi (voice)

Reverend Thomas

Reverend Thomas

Harland (voice)

Marvin 'Gramps' Livingstone

Yeti (voice)

George

Hamm (voice)

Gordon (voice)

Ernest Otto

Clayton

Earl T. Barnum

Hamm (voice)

Hamm (voice)

Mack (voice)

Mike the Angel

Hamm (voice)

Construction Foreman Tom (voice)

Joe Noll

John (voice)

Art Leroldi

P.T. Flea (voice) (uncredited)

Yeti (voice) (archive footage)

Mustafa (voice)

Jim Carter

Controller #1

Mack / Hamm Truck / Abominable Snow Plow / P.T. Flea Car (voice)

Brian's Father (uncredited)

Underminer (voice)

Fish School (voice)

Himself

Self

Thomas 'Tucker' Foy

Yeti (voice)

Charlie Halloran

Clay Fairfield, P.I.

Hamm (voice)

Mickey

Self

P.T. Flea (voice)

Audience Member (uncredited)

Phil

Al Calavito

Goat (voice)

Dusty

Self

Hamm (voice)

Hamm (voice)

Marvin Schector

Self

Cliff Clavin

Cliff Clavin

Walt Caruso

Self

John Ratzenberger (uncredited)

Bill

General Joe Brodsky

Mr. Barnett

Detective

Security Guard on TV

Policeman

American Lieutenant

Chief Peck

Rusty

Communist Leader (uncredited)

Policeman

Tarlow

Jimmy

Controller

Drummer

Major Derlin

Hal Leonard

Cpl Cook

Achmed

Sgt. John Lucas

1st Controller

Fenn

Newshound

U.S. Lieutenant

Sgt. Kopecki

Patron