David Vincent (43 episodes)

Stan Arthur (27 episodes)

Edgar Scoville (12 episodes)

Sherri Vikor (27 episodes)

Ellie Markham (2 episodes)

Major Rick Graves (27 episodes)

Michael Tressider (2 episodes)

Narrator (voice) (uncredited) (8 episodes)

Vice Chancellor Pierre Alquist (2 episodes)

Magnus (1 episode)

Col. Archie Harmon (2 episodes)

Fellows (1 episode)

Maj. Pete Stanhope (1 episode)

Dr. John Slaton (1 episode)

Dr. Malcolm Gantley (1 episode)

Bob Torin (2 episodes)

Tony LaCava (1 episode)

Guard (2 episodes)

Policeman (1 episode)

Police Sergeant (1 episode)

Brother John (1 episode)

Prof. Charles McKay (1 episode)

Brother James (1 episode)

Gen. Cullenbine (1 episode)

Air Crash Investigator (1 episode)

Jim Bryce (1 episode)

James Boland (1 episode)

Sheriff Lou Carver (1 episode)

Lt. Rawlings (1 episode)

Guard (1 episode)

Reporter (1 episode)

Deputy (2 episodes)

Sergeant (1 episode)

Juror (uncredited) (1 episode)

Alien (uncredited) (1 episode)

Pedestrian (uncredited) (1 episode)

Alien (uncredited) (2 episodes)

Bartender / Alien (uncredited) (1 episode)

Trooper (1 episode)

Alien Pilot (1 episode)

Mama (1 episode)

Maid (1 episode)

Allen Slater (1 episode)

Dr. Mailer (1 episode)

Man (1 episode)

Joe Manners (1 episode)

Sergeant (1 episode)

Cobbs (1 episode)

John Carter (1 episode)

Capt. Mitchell Ross (1 episode)

Dr. John Devin (1 episode)

Dr. Ken Harrison (1 episode)

Carr (1 episode)

Alien (1 episode)

Thatcher (1 episode)

Hank (1 episode)

Edna Greely (1 episode)

Sally Palay (1 episode)

Professor Lindstrom (1 episode)

Cyrus Stone (1 episode)

Man (1 episode)

Garth (1 episode)

Lt. Col. Howell (1 episode)

Congressman Joe Bonning (1 episode)

Dr. Harry Mills (1 episode)

Ed Gidney (1 episode)

Jim Rogers (1 episode)

Andy (1 episode)

Non-Com in Charge (1 episode)

Aide (1 episode)

Deputy Jim (1 episode)

Station Attendant (1 episode)

Police Lt. Ben Holman (1 episode)

Peter Kalter (1 episode)

Friendly Guard (1 episode)

Guard (1 episode)

Alan Landers (1 episode)

Gen. Samuel Arlington Concannon (1 episode)

Spence (1 episode)

Dorian (1 episode)

Mr. Nexus (1 episode)

Ryder (Invader Leader) (1 episode)

Martin (1 episode)

Lieutenant Farley (1 episode)

George Grundy (1 episode)

Gen. Jonathan Blaine (1 episode)

Psychiatrist (1 episode)

Paul Meyers (1 episode)

Alien (1 episode)

Weatherman (1 episode)

Dr. Samuel Crowell (1 episode)

Simon Carver (1 episode)

Ed Larson (1 episode)

Reporter (1 episode)

Hattie Willis (1 episode)

Nurse (1 episode)

Emmett Morgen (1 episode)

Walt Anson (1 episode)

Col. Newcomb (1 episode)

Gilbert (1 episode)

Anne Gibbs (1 episode)

Vikki (1 episode)

Nat Greely (1 episode)

Adam Lane (1 episode)

Eric H. Lund (1 episode)

Alien (1 episode)

Janet Garner (1 episode)

Helen (1 episode)

Jimmy (1 episode)

TV Man (1 episode)

Organist (1 episode)

Library Alien (1 episode)

Tom Wiley (1 episode)

Andrew Hatcher (1 episode)

Dr. Stanley Frederickson (1 episode)

Hastings (1 episode)

Young Nat (1 episode)

Frankie Reed (1 episode)

Jeremy Mace (1 episode)

Dr. Bob Vincent (1 episode)

Alien (uncredited) (1 episode)

Alien (1 episode)

Kant (1 episode)

John Finney (1 episode)

Professor Ed Harrison (1 episode)

General (1 episode)

Prof. Pat Reed (1 episode)

Angela Smith (1 episode)

Homer Warren (1 episode)

Butler (1 episode)

Prof. Eliot Kramer (1 episode)

McNally (1 episode)

Perry (1 episode)

Jorden (1 episode)

(1 episode)

Justice Department Agent (1 episode)

(1 episode)

Mail Truck Driver (1 episode)

Joan Seeley (1 episode)

Stacy (1 episode)

Police Sgt. Leeds (1 episode)

Danny (1 episode)

Police Capt. Bill Battersea (1 episode)

Gus Flagg (1 episode)

Alien Driver (1 episode)

Alien Deputy (1 episode)

Premier Thor Halvorsen (2 episodes)

Harry Ferguson (1 episode)

Taugus (1 episode)

Johnny (1 episode)

Jimmy (1 episode)

John Corwin (1 episode)

Sawyer (1 episode)

Journalist (1 episode)

Chauffeur (1 episode)

Alien Narrator (uncredited) (1 episode)

Alien Air Force Major McEvoy (1 episode)

Harland (1 episode)

Lucien (1 episode)

Reporter (uncredited) (1 episode)

Reporter (1 episode)

Eileen Brown (1 episode)

Female Alien (1 episode)

Groom (1 episode)

Kathy Adams (1 episode)

Aunt Sara (1 episode)

Kemper (1 episode)

Man (1 episode)

Woman (1 episode)

Lloyd Lindstrom (1 episode)

Lieutenant James (1 episode)

The Minister (1 episode)

Proprietress (1 episode)

Superintendent (1 episode)

Houseboy (1 episode)

Nurse (1 episode)

Cab Driver (1 episode)

Alien (1 episode)

Evans (1 episode)

Miguel (1 episode)

Luz (1 episode)

Alien (1 episode)

Manager (1 episode)

Cab Driver (1 episode)

Beggar (1 episode)

Boy (1 episode)

Guide (1 episode)

Guide (1 episode)

Eve Doneghan (1 episode)

Warren Doneghan (1 episode)

Noel Markham (1 episode)

Millington (1 episode)

Selene Lowell (1 episode)

Joan Corman (1 episode)

Greg Lucather (1 episode)

Dr. Grayson (1 episode)

Kevin Ryan (1 episode)

Sgt. Hal Corman (1 episode)

Nurse (1 episode)

Manager (1 episode)

George Vikor (1 episode)

Phil (1 episode)

Houseboy (1 episode)

Guard (1 episode)

Oliver Ames (1 episode)

Ellen Woods (1 episode)

Clare Lapham (1 episode)

Lena Lapham (1 episode)

Carl Gidney (1 episode)

Miss Havergill (1 episode)

Constable Gabbard (1 episode)

Fred Danielson (1 episode)

Stunt Driver (1 episode)

Danielson (1 episode)

Cook (1 episode)

General Theodore Beaumont (1 episode)

Carl Wyeth (1 episode)

Tomkins (1 episode)

Parking Attendant (1 episode)

MP (1 episode)

Guard (1 episode)

Guard (1 episode)

Harry Swain (1 episode)

Colonel Griffith (1 episode)

A.J. Richards (1 episode)

Diane Oberly (1 episode)

Leo Rinaldi (1 episode)

Minister (1 episode)

Rescuer (1 episode)

Guard (1 episode)

Sgt. Walter Ruddell (1 episode)

Billy Stearns (1 episode)

MP Alien (1 episode)

Alien (1 episode)

Barney Cahill (1 episode)

Dr. Reynard (1 episode)

Lt. Alvarado (1 episode)

Mr. Burns (1 episode)

Mr. Nova (1 episode)

Dispatcher (1 episode)

Intern (1 episode)

Bartender (1 episode)

Sobbing Woman (1 episode)

Alien (1 episode)

Alien (1 episode)

Susan Carver (1 episode)

Evelyn Bowers (1 episode)

Neal Taft (1 episode)

Joey Taft (1 episode)

Waiter (1 episode)

Doctor (1 episode)

Alien (1 episode)

Alien at Controls (1 episode)

Father Joe (1 episode)

Dr. MacLeuen (1 episode)

Luis Perez (1 episode)

Lisa (1 episode)

Hotel Clerk (1 episode)

Alien (1 episode)

Nick Baxter (1 episode)

Madeline Flagg (1 episode)

Joe Bagely (1 episode)

Deputy Wallace (1 episode)

Mollly (1 episode)

Webster (1 episode)

Woman Attendant (1 episode)

Deputy in Charge (1 episode)

Gavin Lewis (1 episode)

Hardy Smith (1 episode)

Charlie Coogan (1 episode)

Maj. Clifford Banks (1 episode)

Riley (1 episode)

Correll (1 episode)

Owens (1 episode)

Roberts (1 episode)

Reporter (1 episode)

Attendant (1 episode)

Grace Vincent (1 episode)

Theodore Booth (1 episode)

Joe McMullen (1 episode)

Detective Harding (1 episode)

Mrs. Endicott (1 episode)

Miss Johnson (1 episode)

Bride (1 episode)

Morgan Tate (1 episode)

Carol Tate (1 episode)

Lewis Dunhill (1 episode)

Ed Tonkin (1 episode)

Ed Peterson (1 episode)

J.O. Brock (1 episode)

Detective Carter (1 episode)

Detective Reagan (1 episode)

Paul (1 episode)

Joey (1 episode)

Victoria (1 episode)

Teen (1 episode)

Coroner (1 episode)

Driver (1 episode)

Laurie Keller (1 episode)

Maj. Dan Keller (1 episode)

Gen. Winters (1 episode)

Capt. Chester Albertson (1 episode)

Capt. Burt Connors (1 episode)

Dr. Frederick Rogers (1 episode)

Mr. Arius (1 episode)

Annie Rhodes (1 episode)

Robert Morrison (1 episode)

Police Chief Sam Thorne (1 episode)

Alien Leader (1 episode)

Doctor (1 episode)

Margaret Cook (1 episode)

Paul Cook (1 episode)

Ramsey (1 episode)

Simms (1 episode)

Danvers (1 episode)

Bowman (1 episode)

Grayson (1 episode)

Alien (1 episode)

Alien (1 episode)

Dr. Maria McKinley (1 episode)

Will Hale (1 episode)

Sheriff Gordon Clements (1 episode)

Dr. Sam Larousse (1 episode)

Capt. William Taft (1 episode)

Minister (1 episode)

Townswoman (1 episode)

Townsman (1 episode)

Gale Frazer (1 episode)

Deputy Vern Hammond (1 episode)

Blake (1 episode)

Lavin (1 episode)

Sheriff (1 episode)

Charlie Gilman (1 episode)

James Bernard (1 episode)

Janet Wilk (1 episode)

Judge Simonson (1 episode)

Sgt. Bert Wisnovsky (1 episode)

Fred Wilk (1 episode)

Fred Wilk Sr. (1 episode)

Brennan (1 episode)

Miss Cole (1 episode)

Court Clerk (1 episode)

Mrs. Wilk (1 episode)

John Lovell (1 episode)

Tom Jessup (1 episode)

Jack Palay (1 episode)

Police Sgt. Ernie Goldhaver (1 episode)

Police Lt. John Mattson (1 episode)

Jerry Burns (1 episode)

Earl Garber (1 episode)

Elizabeth Garber (1 episode)

Hal (1 episode)

Mavis (1 episode)

Roy (1 episode)

Frank (1 episode)

Mike (1 episode)

Archie (1 episode)

Vern Corbett (1 episode)

Col. Harris (1 episode)

Mrs. James (1 episode)

Hal (1 episode)

Steve (1 episode)

Nicole (1 episode)

Major (1 episode)

Ambulance Driver (1 episode)

Secretary Knute Rosmundson (1 episode)

Emissary (1 episode)

Colonel (1 episode)

Lieutenant (1 episode)

Hypnotist Alien (1 episode)

Newsman (1 episode)

Hippie (1 episode)

Tressider's Man (1 episode)

Carl Vanders (1 episode)

Alquist's Aide (1 episode)

Frenchman (1 episode)

Journalist (1 episode)

Brother Avery (1 episode)

Sister Claire (1 episode)

Bill Shay (1 episode)

Laura Crowell (1 episode)

Mrs. Thorne (1 episode)

Darrow (1 episode)

Argyle (1 episode)

Dr. Henry Thorne (1 episode)

Police Lieutenant Eaton (1 episode)

Miss Fox (1 episode)

Alien Patient (1 episode)

Cab Driver (1 episode)

Dr. Katherina Serret (1 episode)

Wesley J. Sanders (1 episode)

Deputy Ambassador Peter Borke (1 episode)

Josef Dansk (1 episode)

Conner (1 episode)

Leo (1 episode)

Murphy (1 episode)

Guard (1 episode)

Elyse Reynolds (1 episode)

Charles Roselli (1 episode)

Arthur Singeiser (1 episode)

Professor Hellman (1 episode)

Mary Torin (1 episode)

Lt. Sally Harper (1 episode)

Torberg (1 episode)

Guard (1 episode)

Corridor Guard (1 episode)

Cab Driver (1 episode)

Claudia Stone (1 episode)

Sentry (1 episode)

Lieutenant (1 episode)

June Murray (1 episode)

William Mace (1 episode)

Bob Ferrara (1 episode)

John Nivin (1 episode)

Head Alien (1 episode)

Dr. Ted Willard (1 episode)

Dr. Martin Willard (1 episode)

Burt Newcomb (1 episode)

Coroner Braemer (1 episode)

Housekeeper - Irma (1 episode)

Alien Clerk (1 episode)

Alien Nurse (1 episode)

Joan Surrat (1 episode)

Lieutenant Conners (1 episode)

Louise (1 episode)

Earl (1 episode)

Blake (1 episode)

Stanley Leeds (1 episode)

Robertson (1 episode)

Jeff Brower (1 episode)

Prof. Julian Reed (1 episode)

Art Llewellan (1 episode)

Mrs. Fielding (1 episode)

Scientist (1 episode)

Security Officer (1 episode)

Mike Calvin (1 episode)

Amos Foster (1 episode)

Weller (1 episode)

Cort (1 episode)

Dom (1 episode)

Dorcas (1 episode)

Second Mate (1 episode)

Sarah Concannon (1 episode)

Bill Concannon (1 episode)

Dr. Bill Jacobs (1 episode)

Post (1 episode)

Willard (1 episode)

Junior Officer (1 episode)

Air Policeman (1 episode)

James A. Baxter (1 episode)

Celia Baxter (1 episode)

Arnold Andrew Warren (1 episode)

William Gehrig (1 episode)

Ollie (1 episode)

Casey (1 episode)

Michael Baxter (1 episode)

Station Attendant (1 episode)

Beth Ferguson (1 episode)

Father Paul (1 episode)

The Nun (1 episode)

Ricky (1 episode)

Capt. Jim Trent (1 episode)

Claire (1 episode)

Keith (1 episode)

Officer Joe Nash (1 episode)

Doctor Stark (1 episode)

Dorsey (1 episode)

Hank Willis (1 episode)

Sheriff Tom Halloway (1 episode)

Eddie McKay (1 episode)

Antique Store Proprietor (1 episode)

Boy (1 episode)

Hadley Jenkins (1 episode)

Senator Robert Breeding (1 episode)

Secretary (1 episode)

Reporter (1 episode)

George - Waiter (1 episode)

Courtroom Spectator (uncredited) (1 episode)

Police Officer (uncredited) (1 episode)

Older Alien (1 episode)

Summit Attendee (uncredited) (1 episode)

Photographer (uncredited) (1 episode)

Summit Attendee (uncredited) (1 episode)

Summit Attendee (uncredited) (1 episode)

Summit Attendee (uncredited) (1 episode)

Summit Attendee (uncredited) (1 episode)

Summit Attendee (uncredited) (1 episode)

Restaurant Patron (uncredited) (1 episode)

Bartender (uncredited) (1 episode)

Alien (uncredited) (1 episode)

Director of Photography (41 episodes)

Director of Photography (1 episode)

Stunts (1 episode)

Director (9 episodes)

Director (6 episodes)

Director (4 episodes)

Director (3 episodes)

Director (3 episodes)

Director (3 episodes)

Director (2 episodes)

Director (2 episodes)

Director (2 episodes)

Director (2 episodes)

Director (2 episodes)

Director (1 episode)

Director (1 episode)

Director (1 episode)

Director (1 episode)

Director (1 episode)

Editor (21 episodes)

Editor (10 episodes)

Editor (6 episodes)

Editor (2 episodes)

Editor (2 episodes)

Editor (1 episode)

Writer (5 episodes)

Teleplay (1 episode)

Writer (4 episodes)

Writer (2 episodes)

Teleplay (2 episodes)

Writer (3 episodes)

Writer (3 episodes)

Writer (2 episodes)

Teleplay (1 episode)

Writer (1 episode)

Writer (1 episode)

Story (1 episode)

Writer (2 episodes)

Writer (2 episodes)

Teleplay (1 episode)

Writer (1 episode)

Writer (2 episodes)

Writer (2 episodes)

Writer (1 episode)

Story (1 episode)

Writer (1 episode)

Story (1 episode)

Writer (1 episode)

Writer (1 episode)

Writer (1 episode)

Writer (1 episode)

Story (1 episode)

Writer (1 episode)

Writer (1 episode)

Writer (1 episode)

Story (1 episode)

Writer (1 episode)

Writer (1 episode)

Story (1 episode)

Story (1 episode)

Story (1 episode)

Story (1 episode)

Story (1 episode)

Story (1 episode)

Writer (1 episode)