Rollercoaster

George Segal

Harry Calder

Richard Widmark

Agent Hoyt

Timothy Bottoms

Young Man

Harry Guardino

Keefer

Susan Strasberg

Fran

Henry Fonda

Simon Davenport

Helen Hunt

Tracy Calder

Dorothy Tristan

Helen

Harry Davis

Benny Neilson

Stephen Pearlman

Bert Lyons

G.F. Rowe

Wayne Moore

Wayne Tippit

Police Captain Christie

Michael Bell

Demerest

Robert Quarry

Mayor

Richard Altman

Mandell

Gloria Calomee

Jackie