Dawn Wells

Eileen Brown

Roy Thinnes

David Vincent

Diana Hyland

Ellie Markham · Sherri Vikor

William Windom

Michael Tressider

Kent Smith

Stan Arthur

Laurie Mock

Female Alien

Jerry Ayres

Groom

Diane Baker

Kathy Adams

Ellen Corby

Aunt Sara

Vaughn Taylor

Kemper

Skip Ward

Man

Bonnie Beecher

Woman

Roddy McDowall

Lloyd Lindstrom

Willard Sage

Lieutenant James

Dabbs Greer

The Minister

Jackie Kendall

Proprietress

Stuart Lancaster

Superintendent

Soon-Tek Oh

Houseboy

Mel Gallagher

Nurse

Roy N. Sickner

Cab Driver

Paul Gleason

Alien

Edward Andrews

Evans

Rodolfo Hoyos Jr.

Miguel

Argentina Brunetti

Luz

Roy Jenson

Alien

Val Avery

Manager

Ted Gehring

Cab Driver

Pedro Regas

Beggar

Tony Davis

Boy

Roberto Contreras

Guide

Pepe Callahan

Guide

Diana Van der Vlis

Eve Doneghan

Arthur Hill

Warren Doneghan

Theo Marcuse

Noel Markham

Peter Brocco

Millington

Carol Eve Rossen

Selene Lowell

Louise Latham

Joan Corman

John Larch

Greg Lucather

Frank Overton

Dr. Grayson

Jonathan Goldsmith

Kevin Ryan

Phillip Pine

Sgt. Hal Corman

Danni Sue Nolan

Nurse

Bill Erwin

Manager

Jack Lord

George Vikor

Joe Di Reda

Phil

Larry Duran

Houseboy

Max Kleven

Guard

Robert Emhardt

Oliver Ames

Kathleen Widdoes

Ellen Woods

Irene Tedrow

Clare Lapham

Nellie Burt

Lena Lapham

Logan Field

Carl Gidney

Jeanette Nolan

Miss Havergill

William Bramley

Constable Gabbard

Jim Halferty

Fred Danielson

Carey Loftin

Hank Braden

William Challee

Danielson

John Harmon

Cook

Andrew Duggan

General Theodore Beaumont

Robert Osterloh

Carl Wyeth

Wesley Addy

Tomkins

Rick Murray

Parking Attendant

David Armstrong

MP

K.L. Smith

Guard

Don Kennedy

Guard

James Whitmore

Harry Swain

William Talman

Colonel Griffith

Milton Selzer

A.J. Richards

Susan Strasberg

Diane Oberly

Ernest Sarracino

Leo Rinaldi

Mel Ruick

Minister

Ron Doyle

Rescuer

Raymond Guth

Guard

Robert Doyle

Sgt. Walter Ruddell

Paul Carr

Billy Stearns

Erik Holland

MP Alien

Harry Lauter

Alien

Jack Warden

Barney Cahill

Murray Matheson

Dr. Reynard

Barry Russo

Lt. Alvarado

Ahna Capri

Joan Surrat

Albert Carrier

Frenchman

Alex Gerry

Senator Robert Breeding

Alfred Ryder

Mr. Nexus

Andrew Prine

Vern Corbett

Anne Francis

Annie Rhodes

Antoinette Bower

Laurie Keller

Arthur Franz

Capt. Jim Trent

Arthur Tovey

Summit Attendee (uncredited)

Austin Willis

William Gehrig

Barbara Hershey

Beth Ferguson

BarBara Luna

Lisa

Barney Phillips

Walt Anson

Barry Cahill

Dorsey

Barry Williams

Boy

Ben Wright

Emissary

Bill Fletcher

Alien

Bill Quinn

Police Lieutenant Eaton

Bill Zuckert

Sgt. Bert Wisnovsky

Booth Colman

Coroner Braemer

Boyd 'Red' Morgan

Station Attendant

Burgess Meredith

Theodore Booth

Burt Douglas

Capt. Burt Connors

Carlos Romero

Luis Perez

Charles Aidman

Prof. Julian Reed

Chris Robinson

Mike Calvin

Clark Ross

Summit Attendee (uncredited)

Craig Chudy

Alien

Dabney Coleman

Capt. Mitchell Ross

Dan Frazer

Reporter

Dana Elcar

Sheriff Tom Halloway

Dana Wynter

Dr. Katherina Serret

David Sheiner

Mr. Burns

Diana Muldaur

Claire

Don Chastain

Blake

Don Dubbins

Wesley J. Sanders

Don Eitner

Webster

Don Gordon

Charlie Gilman

Don Ross

Ed Larson

Donald Harron

Jeff Brower

Dort Clark

Security Officer

Ed Asner

Taugus

Ed Begley

Simon Carver

Ed Peck

Darrow

Eddie Barth

Cab Driver

Edward Faulkner

Alien

Eldon Quick

Antique Store Proprietor

Ford Rainey

George Grundy

Forrest Compton

Capt. Chester Albertson

Frank Marth

Alien

Garry Walberg

Detective Reagan

Garth Pillsbury

Intern

Gene Hackman

Tom Jessup

Gene Lyons

Sawyer

Hal Baylor

Guard

Harlan Warde

Ed Peterson

Harold Gould

Dr. Mailer

Ian Wolfe

Secretary Knute Rosmundson

Ivan Bonar

Older Alien

J.D. Cannon

Police Lt. Ben Holman

Jack Bannon

Junior Officer

James B. Sikking

Capt. William Taft

James Daly

Alan Landers

James Gammon

Hal

James Seay

Grayson

James T. Callahan

Ed Gidney

Jason Wingreen

Court Clerk

Joel Fluellen

Butler

John Carter

Owens

John Ericson

Hardy Smith

John Kellogg

Dom

John Lupton

Maj. Clifford Banks

John McLiam

Hotel Clerk

John Milford

Sheriff Lou Carver

John Randolph

Police Sgt. Ernie Goldhaver

John S. Ragin

John Finney

John Stephenson

John Nivin

John Zaremba

General

Jon Lormer

Minister

Joseph Campanella

Father Joe

Joseph V. Perry

Joe Bagely

Julie Sommars

Grace Vincent

Karen Black

Claudia Stone

Karl Held

Lieutenant

Kelly Jean Peters

Nicole

Kelly Thordsen

Police Chief Sam Thorne

Ken Lynch

Lieutenant Conners

Kevin McCarthy

Paul Cook

Larry Gates

Weller

Larry Thor

Dr. Bill Jacobs

Larry Ward

Detective Carter

Laurence Naismith

Professor Lindstrom

Lawrence Dane

Josef Dansk

Lawrence Montaigne

Man

Lee Millar

Reporter

Lin McCarthy

Fellows

Lloyd Gough

Joe McMullen

Louis Gossett Jr.

Ollie

Lynda Day George

Janet Wilk

Lynn Loring

Madeline Flagg

Marcia Wallace

Courtroom Spectator (uncredited)

Mark Miller

Jack Palay

Mark Roberts

Dr. Sam Larousse

Mark Russell

Alien (uncredited)

Marlyn Mason

Carol Tate

Mary Jackson

Nurse

Maura McGiveney

Mary Torin

Michael Constantine

Dr. Martin Willard

Michael McGreevey

Eddie McKay

Michael Rennie

Magnus

Michael Tolan

Dr. Ted Willard

Morgan Jones

Reporter

Mort Mills

Mr. Arius

Murray Hamilton

Lewis Dunhill

Nan Martin

Dr. Maria McKinley

Nancy Kovack

June Murray

Nancy Wickwire

Evelyn Bowers

Noah Keen

Psychiatrist

Noam Pitlik

Jerry Burns

Norman Fell

Neal Taft

Pamela Curran

Louise

Pat Hingle

Brother Avery

Patricia Smith

Edna Greely

Paul Bradley

Summit Attendee (uncredited)

Paul Bryar

J.O. Brock

Paul Comi

Danny

Paul Lukather

Correll

Paul Mantee

Deputy Vern Hammond

Paul Sorensen

Alien

Peggy Lipton

Bride

Peter Graves

Gavin Lewis

Peter Hobbs

Colonel

Peter Mark Richman

Tom Wiley

Phil Chambers

Townsman

R.G. Armstrong

Gus Flagg

Ralph Bellamy

Morgan Tate

Raymond St. Jacques

James A. Baxter

Rhys Williams

Professor Hellman

Richard Anderson

Blake

Richard Eastham

Carl Vanders

Richard O'Brien

Police Sergeant

Richard X. Slattery

Riley

Robert H. Harris

Hastings

Robert Sorrells

Station Attendant

Robert Walker Jr.

Nick Baxter

Roger Perry

Bill Shay

Ron Hayes

Sheriff Gordon Clements

Ron Nyman

Alien (uncredited)

Roscoe Lee Browne

Arnold Andrew Warren

Ross Elliott

McNally

Ross Hagen

Jorden

Roy Engel

Dr. Frederick Rogers

Roy Poole

Cort

Russ Conway

Detective Harding

Russell Johnson

James Bernard

Seymour Cassel

Driver

Shirley Knight

Margaret Cook

Sid McCoy

John Lovell

Simon Scott

Dr. Malcolm Gantley

Stephen Brooks

Officer Joe Nash

Steve Cory

Attendant

Stuart Nisbet

Coroner

Susan Oliver

Stacy

Suzanne Pleshette

Vikki

Ted Knight

Alien Air Force Major McEvoy

Ted Markland

Alien

Tom Lowell

Steve

Vic Perrin

Hypnotist Alien

Vince Howard

Frank

Virginia Christine

Mrs. Thorne

Walter Brooke

Danvers

Walter Reed

Major

Walter Woolf King

Head Alien

Wayne Heffley

Deputy

Wayne Rogers

Police Lt. John Mattson

Whit Bissell

Col. Harris

Will Geer

Hank Willis

William Smithers

Nat Greely

Zina Bethune

Sister Claire