George Peppard

Character: Capt. Frank Matthews

Jean Seberg

Character: Adele Matthews

Richard Kiley

Character: Woodrow Wilson King

Charles McGraw

Character: Deputy Chief John P. Hildebrand

Madeleine Sherwood

Character: Mrs. Eileen Sanderson

Robert F. Lyons

Character: Paul Martin Sanderson

Frank Marth

Character: Lt. Smithson

Marj Dusay

Character: Liz Tennant

Paul McGrath

Character: Senator Augustus Cole

Stewart Moss

Character: Richard D'Angelo

Isabel Sanford

Character: Effie

Dana Elcar

Character: Det. J.J. 'Red' Thornton

Harry Lewis

Character: Brooks Elliott

Mildred Trares

Character: Mary Schumacher

Robin Raymond

Character: Myra

Phyllis Hill

Character: Mrs. Wilma Elliot

S. John Launer

Character: Judge Kinsella

Jock MacKelvie

Character: U.S. Attorney Grady Butler

Richard Guizon

Character: Deputy Marshall Jack Barnes

Jack Grimes

Character: Artie

Logan Ramsey

Character: Detective Jelinek

Douglas Henderson

Character: Detective Hanauer

Gene Boland

Character: Garland

Vince Flaherty

Character: Street Tough

George Boyce

Character: Courtroom Spectator