Harry Calder

George Segal

Acting

Agent Hoyt

Richard Widmark

Acting

Young Man

Timothy Bottoms

Acting

Keefer

Harry Guardino

Acting

Fran

Susan Strasberg

Acting

Simon Davenport

Henry Fonda

Acting

Tracy Calder

Helen Hunt

Acting

Helen

Dorothy Tristan

Acting

Benny Neilson

Harry Davis

Acting

Bert Lyons

Stephen Pearlman

Acting

Wayne Moore

G.F. Rowe

Acting

Police Captain Christie

Wayne Tippit

Acting

Demerest

Michael Bell

Acting

Mayor

Robert Quarry

Acting

Mandell

Richard Altman

Acting

Jackie

Gloria Calomee

Acting

Owner #2

Quinn K. Redeker

Acting

Hippie Boy

Craig Wasson

Acting

Girl in Line

Jean Rasey

Acting

Boy in Line

Greg Elliot

Writing

Coaster Attendant

Tara Buckman

Acting

Tourist Mother

Monica Lewis

Acting

Tourist Father

Dick Wesson

Acting

Bomb Squad #1

Bruce Kimball

Acting

Bomb Squad #2

Bruce French

Acting

Bomb Squad #3

Stephen Mendillo

Acting

Bomb Squad #4

Larry Holt

Crew

Bomb Squad #5

Gene Tyburn

Acting

Owner

Arthur Peterson

Acting

Agent with Red Hat

Mark Thomas

Acting

Self - Sparks (uncredited)

Ron Mael

Acting

Self - Sparks (uncredited)

Russell Mael

Acting

Messenger (uncredited)

Steve Guttenberg

Acting

Selby

Bill Sorrells

Acting

Quinlan

William Prince

Acting