George Peppard

Police Captain Frank Matthews

Jean Seberg

Adele Matthews

Richard Kiley

Woodrow Wilson King

Charles McGraw

Deputy Chief John P. Hildebrand

Madeleine Sherwood

Mrs. Eileen Sanderson

Robert F. Lyons

Paul Martin Sanderson

Frank Marth

Police Lt. Smithson

Marj Dusay

Liz Tennant

Paul McGrath

Senator Augustus Cole

Stewart Moss

Richard D'Angelo

Isabel Sanford

Effie

Dana Elcar

Police Det. J.J. 'Red' Thornton

Harry Lewis

Brooks Elliot

Mildred Trares

Mary Schumacher

Robin Raymond

Myra

Phyllis Hill

Mrs. Wilma Elliot

S. John Launer

Judge Kinsella

Jock MacKelvie

U.S. Attorney Grady Butler